"Oh man, I shot Marvin in the face!" - Vincent, Pulp Fiction
I also had one from Jay and Silent Bob Strike Back, but anyone who's seen the movie knows it would've been taken out within minutes by the Mods.
"We are not enemies, but friends. We must not be enemies. Though passion may have strained, it must not break our bonds of affection. The mystic chords of memory will swell when again touched, as surely they will be, by the better angels of our nature." - Danny, American History X

There's tons more but I'm not gonna spend too long thinking them up.