He then slaps his son on the back of the head and says: "What do you want, fat-head?"
The lady behind the counter, shocked, says, "Why did you call him that?"
"I'll tell you why," says the dad. "There's really only three things a man wants in life.
First, he wants a nice big truck. See that nice big truck parked outside? That's mine.
Second, he wants a nice big house. I have one of the biggest houses in town. Third, and most important, he wants a nice tight pussy and I had that too until fat-head here came along."