Joe wanted to buy a motorcycle. He didn't have much luck until one day, he came across a Harley with a 'for sale' sign on it. The bike seemed even better than a new one, although it was 10 years old. It is shiny and in absolute mint condition. He immediately bought it, and asked the seller how he kept it in such great condition for 10 years. 'Well, it's quite simple, really,' says the seller, 'whenever the bike is outside and it's gonna rain, rub Vaseline on the chrome. It protects it from the rain.' And he hands Joe a jar of Vaseline. That night, his girlfriend, Sandra, invites him over to meet her parents. Naturally, they take the bike there. But just before they enter the house, Sandra stops him and says, 'I have to tell you something about my family before we go in.' 'When we eat dinner, we don't talk. In fact, the first person who says anything during dinner has to do the dishes.' 'No problem,' he says. And in they ...