comes home from school
and asks his dad, "What's the difference between potential and reality?"
His Dad says, "I'll show you. Ask your mum whether she'd sleep with Robert Redford for a million dollars. Then ask your sister if she'd sleep with Brad Pitt for a million dollars."
So the kid asks his Mum, "Would you sleep with Robert Redford for a million dollars?" His Mum says, "Don't tell your father, but yes, I would."
Then he asks his sister, "For a million dollars would you sleep with Brad Pitt?" She said, "Yes!"
The kid goes back to his Dad and says, "I've got it. Potentially we're sitting on a couple of millions bucks - but in reality we're living with a couple of sluts."