Chester "Snake Jailbird" Turley is the constantly recurring convict on The Simpsons.  Even if he's not busy robbing poor Apu's Kwik-E-Mart, he's usually seen getting arrested for something during most of his scenes.

Snake Jailbird Quotes

Chief Wiggum: Help! Help us! They stole our uniforms guns and tazers!
Snake: (in a police uniform) Ohhhhh, Fry piggy. (charges tazer)
Chief Wiggum: No, no -- no don't -- aargh! Aargh! A little to the left... aah, that's the stuff.

Use a pen, Sideshow Bob!

Snake

The Simpsons Quotes

Homer: (Wearing glasses) The sum of the square roots of any two sides of an isosceles triangle is equal to the square root of the remaining side!
Man: (From inside a bathroom stall.) That's a right triangle, you idiot!
Homer: D'oh!

Wow, now I see why they call you Miss Hoover. You must have been vacuuming for an hour.

Bart