Speaking of bumper stickers:
"Jesus loves you.....everyb ody else thinks you're an asshole"
From 'The Prophecy' (one of my all-timers):
"I'm an angel. I kill newborns while their mamas watch. I turn cities into salt. And occasionally, when I feel like it, I tear little girls apart. And from now 'til kingdom come... the only thing you can count on... in your existence... is never understanding why."
Another fave movie of mine is 'The Way Of The Gun':
"Shut that cunts mouth or I'll come over there and fuckstart her head!"