Nothing much for me, really. I once almost broke on of my toes because a reaaally heavy chair fell on it, and it was moderately painful...
And I guess there was a time when i almost smashed my ribcage as a kid by somehow and stupidly running into a wall at full speed -_-.

Oh, and probably if not the most painful of them, but definitely most annoying and debilitating thing that happened to me was... I guess some gross pulled shoulder of some kind during Aikido practice. Normally it's not a big deal, but that time my right arm hurt for like a few months and i could barely lift it without experiencing pain.

Robert0288:
I think I win with physical injuries.
1) had finger almost lobbed off with an axe while camping. sowing it back on without painkillers fu©king hurts

2) complete rip of my cross-lateral groin muscle. Couldn't walk for months or even move my legs. 6 years later it still gets painfull if your not carefull about stretching before doing anything physical

3) This one happend 2 weeks ago, I ripped the latteral miniscous on my left knee, been limping like a cripple ever since.

I only way your beating this is if you decided to go base jumping without a parachute, or played dogeball on teh highway.

OK I WIN,i win physically
i was playing resident evil 4 on the computer so i could use cheats cause i suck at it
i started to lean back in my chair during a cutseen all of a sudden this dick through a knife at me i jumped out of my chair in a sort but instead fell backwards and in the game i got stabbed and at the same time i fell back and landed on a huge metal thing and it impailed me (not very deep at all) and i started Screaming like FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFf and now i have this scar right on top of my ass. so yes i win, and p.s. you cant call yourself a gamer without something like this happening to you

Fell through the net on my friends trampoline(they thought it would be a good idea to hold it up with zip-ties) slashing my head on a sharp rock that was sticking out of the ground giving me a deep 3 inch gash in the back of my head just above my neck. That was a fun trip to the hospital:).

Actually, this guy would win...

http://www.msnbc.msn.com/id/11624436/

A 29-year-old man heard a snap during sexual intercourse followed by immediate detumescence and a swelling of the penile basis and scrotum, due to a penile fracture.

*wonders how many have just crossed their legs and doubled up in sympathy*

Sniper shot to the head...

Oh wait I was just playing Fallout 3 :-)

Got stabbed by a very naughty person.

My brother threw piece of a paving slab up a tree which danced down through the branches and landed on my head, that sucked pretty bad

DreamKing:
I had a car roll over my left foot once. Then I proceeded to walk a mile home. Hooray for high pain tolerance.

I once snapped the tendons that attach to your foot so you can walk and then had to "walk" about 3 -4 kms uphill. Doctor said there was no need for a bandage it would just fix itself and he told me not to walk, oh well I didn't listen.

I have the luxury of being mostly unscathed. Unless fate is cruel and I have a motorcycle crash 0_o Also I ripped my lower lip down the middle when I was like... four? I think. not just cut my lip... ripped it down the middle. Awesome scar though.

I was attacked by a cat once when I was 10, does that count?

I nearly cut my left foot off with of all things a Weed-eater. How with a weed-eater you may ask, well this one had a brush clearing blade on it at the time not the regular trimmer line and I had just sharpened the damn thing as well. Bled all over the place, and to add insult to injury I had to drive myself to the hospital, as it turned out I had severed two tendons in my ankle I figured that out myself when I tried to wiggle my big toe and it would go down but not back up. Then there was the asshole that stuck me three times trying to start an IV on me, his excuse was,get this, "Your skin is too tough".

I stubbed my toe once. Hurt like a bitch. Strangely enough i have been punched square in the face and that hurt less.

broke my wrist playing baseball and constantly broke fingers playing offensive line in football

jezz8me:
I stubbed my toe once. Hurt like a bitch. Strangely enough i have been punched square in the face and that hurt less.

dude, i couldn't have said it better. don't know what it is about stubbing a toe, might as well stab an ice pick into my knee caps

jezz8me:
I stubbed my toe once. Hurt like a bitch. Strangely enough i have been punched square in the face and that hurt less.

That, and smacking into the corner of a desk with your knee. That just somehow hurts so freaking much.. I remember one occasion when I was not able to properly breathe because of the pain.. >.>

I also got hit by a drunk driver once. Wrecked my motorcycle, broke my arm and received a heavy concussion. Week in the hospital. 's All I can think of.

I've sprained my arm, been attacked by a squirrel twice (leaving my hands very bloodied), given myself a scar with my knife trying to open one of those hard plastic electronics containers, and sliced a neat little scar just under my nose with a pair of broken nunchucks.

Nothing much. Some of the worst pain I've ever felt was back when I was taking Aikido class, when I was learning how to roll properly. Know how you learn to roll properly? Experience. Know how to get experience? Fail. Know what happens when you fail a LOT at rolling? Your butt gets sore for a week and hurts like the dickens (seriously, Charles Dickens came over and compared the pain for me).

Probably when I had the "Winter Vomitting bug", Norovirus. Basically, I was vomitted about 12 times in less than 24 hours. By the end of it, my stomach was in agony.

I got hit by a truck....a red 2001 ford 150 going roughly 40 miles per hour I broke 9 bones slashed up one side and cut open my forehead

I broke a nail once!

I was bit by a full grown sow when i was 11 it broke my arm in 5 places.

Fell headfirst on a brick once....started leaking.
Also had some drying machinery cropped on my knee once, hurt like hell for a week. The only thing that stopped my leg from snapping like an unusually dry and blood-filled twig was my titanic strength and some conveniently tied rope.
Mostly the rope.

I got stabbed in the leg once, with a piece of wood. It broke off inside and I couldn't get it out, obviously, so I had to have a doctor do that. Sprained my wrist a few times...oh, and once, the top part of my ear got sliced through. That probably doesn't sound that bad, and it didn't hurt the first second it happened, but trust me, it was awful.

I got into a fight once which left me with bloody knuckles, a massive graze on my left shoulder, split lip and severely bruised ribs. And yeah, you should have seen the other guy.

That said, being shoved up against a metal barrier at Opeth was painful once my ribs cracked. 3000 people pushing you isn't as pleasant as one might expect.

Jeez, the worst I've ever had is a dislocated left knee-cap...

well i somehow gotten used to a lot and a lot of pain.
now im not 1 to complain but having about 50 nails in your feet fucking hurts!
my little cuz (the cheeky bastard) put nails in front of my bed facing UP!
i step out to take a piss while i was thinking this "uh gotta take a pi... AAAAAAHHHH FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUCK!!!!!"
HAD TO GET IT out with a hammer thats right a freaking hammer!
the a dog almost bit of my finger it was hanging of by a thread had to get it stiched without painkillers and after that i found out it was infected.
had to get needles in there and everything i still curse that fucking dog!
and does it count how much u hurt someone else?
coz a few weeks ago i got in a massive fight with some kid walks up to me punches me in the face naturally i punch him back he falls over i punch him in the face a few times after that i lifted him up put him on my shoulders and smashed him into the ground then smashed his head into the water fountain for about 20 seconds till a teacher got a broken nose and broke up the fight. im still suspended and almost expelled coz hes in a coma or somethin

I'm a very lucky person and have avoided serious injury/death on about 3 occasions but the worst injury I've had was when a friend slammed a car door on my head accidentally he claims..

Rolled down a hill. Broke my arm. It hurt

WolfMage:
Hmm, car crash, got a concussion.
Shot in the leg.
Buckshot to the back.
Horse threw me once. One of the only time I got on one, too.
Three stab wounds.
Shall I continue?

Holy shit, why did you get shot?

ON TOPIC:

When I was six I jumped off a "merry go round" ride. I broke my left arm and my left wrist. We called 911, waited half an hour for the reply, only for them to figure out they couldnt go to the place because it was too far. So, my parents had to drive there with an extremely slow car. I had to hold the pain for another hour. I whore the cast for 3 weeks, but since I´m a lefty, I practicly did nothing at school. All the work I had to do was dictated by me and wrote by my teacher.

Once, I did a facepleant on a cement floor. It hurt allot, but at least I got to see some sweet coulors. A bit later I lost balance and sense of distance.

darkstone:
I was attacked by a cat once when I was 10, does that count?

Well if you replaced attacked with mauled then it sure does sound like some serious physical punishment.

I have never seriously injured myself enough to have broken anything though once when playing cricket I got hit in the back of the knee with a speeding cricket ball, stumbled a bit than tripped and grazed almost all of the front of my body except for my face. So much blood...

Fell from a tree as a kid, the ground was soft soil so thats fine but the plank of wood with a nail in it wasn't, went into my chest, it wasn't a very big nail so thats fine and it wasn't too painfull but its the closest i've come to any sort of huge injury.

I was talking to a friend who was sitting in a wooden swing, I was lying on the ground in front of the swing with my legs under it and my right leg propped up on a step. The swing weighed 74 pounds. My friend weighed 229 pounds. the chain holding the swing on the right side broke and they both fell on my knee, which bent backwards. It tore all three of the ligaments as well as splitting my knee cap in half. One hundred and eighty-one stitches, five reconstructive surgeries, 14 months of physical therapy and two dead peoples knee ligaments later...I can walk and run a little but stairs are pretty much out of the question...oh, and at the hospital, they gave me local anesythsia shots into my wound, so basicly, their logic was---"Good lord! That looks appalingly painful, let's stab it with a needle 4 times."

Labyrinth:
I got into a fight once which left me with bloody knuckles, a massive graze on my left shoulder, split lip and severely bruised ribs. And yeah, you should have seen the other guy.

That said, being shoved up against a metal barrier at Opeth was painful once my ribs cracked. 3000 people pushing you isn't as pleasant as one might expect.

WOOOOOOOO another opeth fan.

Anyhow my worst injuries... Dislocated shoulder.

Misdiagnosed broken wrist. The doctors thought it was just a sprain. somehow a full split in the bone didnt show up on the xray, every now and then my hand seizes up because of this.
Another is tearing medial and lateral ligaments in my knee and destroying the cartlige in there playing soccer at lunchtime. Walked back to my class up on the third story of my school and back to the front office to get some ice. Got rushed to the hospital when my leg went blue from a blood clot =)

ive cracked my head open twice, once almost got my eye, would have been blinded. but yeh, i cracked my forehead and the back of my head open. heres what happened

im 9 and the new monkey bars had been installed at my school, at that age im pretty damn short (still kinda am) so i have to jump up with all my might to reach. well 3rd time jumping and i slip, the stand which was below the first bar was soild metal. my head landed on it and blood when every where, no joke, and although i was young and had just recived a whooping blow to the head, i remained conscious. i was aided by the near-by teachers, its kinda werid when i think about it, i didnt need an stiches.

the second time was at my house during the major renovations to extend the house, planks of wood had been nail gun in place slightly above the ground to base the flooring. well, due ti my ultra irresponsbility i hadnt listened to my parents when they warned me not to walk on them, then shit got ugly, i trips on the edge and face planted right into the sharp edge of the wood, splitting my forehead right on my eyebrow. my dad paniced, running around the house like a physco with no idea on what to do, my sister calmed him down and i was driven to the local docters. heres were it gets funny, since the rather nice american lady that was placing the stiches in my face, didnt put enough anesthetic and i felt here stick the needle right through my face. i recived 5 stiches.

since then i havent recived many injuries

I was once hit in the crotch with a palm tree (difficult to explain, so I won't bother) and my right testicle swelled to the size of a tennis ball.
It took 3 days for the swelling to subside, and another week before I could walk comfortably again.

I haven't had any serious injuries or broken bones. Though i did come close ages ago when i tried to clear a gap between 2 bombholes on my bike and went over the handle bars on the landing. Shook me up qite a bit but only escaped with a couple of bruses.