Tom buys a Harley Davidson. The seller tells him, "Whenever it's going to rain, rub vaseline on the chrome so it won't rust.
"That night, his girlfriend takes him to meet her parents. But just before they go in she says, "I have to tell you, when we eat, we don't talk. In fact, the first person who says anything during dinner, has to do the dishes."
They sit down and no one says a word. As dinner goes on, Tom decides to test the situation. So he reaches over and grabs her tits. Nobody says a word.
So he stands up, rips her clothes off and screws her right there, in front of her parents. But no one says a word.
So he grabs the mum, bends her over the table and nails her, then sits down. But still, silence.
All of a sudden there's a loud clap of thunder and it starts to rain. Tom remembers his bike, so he pulls out the vaseline. The dad jumps up and says, "For fuck sake, i'll do the dishes."