How bad must it suck to be Palpatine's apprentice? Palpatine spends all day looking for people to kill him. Right in front of him. And the apprentice never says anything. Palpatine did this throughout the movies and no doubt in the expanded universe as well. Maybe he should have just posted a job listing:
Seeking force-sensitive for important high-level position in the Galactic Empire. Your duties will include killing your predecessor, and aiding in the search for your replacement, who will then kill you. Fighter pilot experience a plus. Send resume and cover letter to Imperial Death Star c/o E. Palpatine. Non-Wookiees only, please.