Since we're getting all risqué... here's one....A little boy is walking down the street wearing a welders mask when a man sitting in a parked car calls him over. "Sit in here beside me, little boy," he says "and I'll give you some sweets".
The boy gets into the car.
"Well son," asks the man, "do you know what buggery is?"
"No" says the boy
"Do you know what sodomy is?"
"No" says the boy
"What about pederasty?"
"No" says the boy "and I don't know why you're asking me all these questions. I'm not a real welder."