What is the best insult you've ever heard?

for example:

                Is your ass jealous of the amount of s**t that just came out of your mouth?

                I don't hate you, but if you were on fire and I had water, I'd drink it.

               What are you going to do for a face when the baboon wants his butt back?

the winner's entry will be used next time my enemy gets on my nerves.