According to Yahoo...
http://health.yahoo.com/experts/menl...-a-first-date/
But it got me thinking of a better list:
5. "Want to see my record setting ball of belly-button lint?"
4. "I have a collection of body parts from my old girlfriends in my basement."
3. "It puts the lotion on its skin, or else it gets the hose again!"
2. "Want to drive out to the desert with me? Just throw that shovel in the back seat."
And the number 1 thing you should never say on the first date...
1. "If you think this coldsore on my lip looks bad, wait til you see my dick!"