He slept, he stole, he was rude to the customers.

Related:

• Man 1: I need one 29-cent stamp. Apu: That's $1.85.
  Man 2: I'll have $2.00 worth of gas, please. Apu...
• Apu: Nickel off on expired baby food. Homer: Sold!
  Think of the money he's saving, "I Love...
• Homer: [annoyed] Is he still out there? Marge: Yes.
  He's raking leaves? Homer: What? That's _your_ job...
• Apu: There she is: the world's first convenience store!
  [points to store on top of mountain] Homer:...
• Marge: Apu, you've been so helpful. If it weren't for him,
  we'd still be in line at the Monstro Mart! ...
• Marge: I think there's really something wrong with Santa's Little Helper.
  He was up barking all night, and dug up the back ...
• Lisa: My dad is very sick. What's going to happen if he dies?
  Albright: Well, if he's been good, he'll go to heaven...
• Homer, you are asleep at your post! Now go change the expiration dates on the dairy products!
  Apu, "Lisa's...
• Apu, you can take this job and restaff it! -- Homer quits his job at the Kwik-E-Mart,
  "Lisa's...