"Never compromise, never wink at injustice. Never quit trying to make this a better forum city for everyone" - Hieronymus Lex
I love that one too.
Let's see what I can think of:
"Never heard of her. And none of your business if I did. So blow, like smoke, or I'll spill you like a baby's cup." - Daren Adryn
"Wonderful! Time for a celebration... Cheese for everyone! Wait, scratch that. Cheese for no one. I suppose that can be just as much of a celebration, if you don't like cheese, true?" - Sheogorath
"We're watching you. Scum." - Ordinator
"Stop right there criminal scum!" - Imperial guard.