As sure as...

I saw a comment from the motherboard's blog today and it made me laugh out loud! (A lot of her stuff does.)

"As sure as monkeys throw poop... "

I can't even remember the rest because I wanted to remember the monkey/poop-throw thing.

Soooo funny to me.

But then, I love to call my children "Stinky poo-poo head". To me it is a term of endearment, and it makes me laugh. Really hard. Every time.
It offends my 16 year old daughter, so I try super hard not to call her a stinky poo-poo head, because she is already mad enough, and I don't need to add extra to the inevitable explosion. I always think it.

Maybe I need to talk to someone about why poop is funny to me.

So, I would love it if some of you could tell me some phrase that always makes you laugh.
Every time.