Dave asks a woman on the street if he can bite her breasts for $100.
"Are you crazy? No!" she says, and walks away.
He runs around the block and meets her at the next corner. "$1,000 to bite your breasts."
"No! I'm not that kind of woman!"
He runs around another block. "$10,000. Just one bite."
She stops. "$10,000? Seriously? Okay, fine... but just once, and not here."
They go into a dark alley and she takes off her blouse and bra. Dave goes crazy: kissing them, squeezing them, burying his face in them. But he never bites.
Finally she gets annoyed. "Well? Are you going to bite them or not?"
"Nah. Costs too much."