"Potential vs Reality" joke
A high school student came home from school with a writing assignment and asked his father for help. "Dad, could you explain the difference between potential and reality to me?" he asked.
He father looked up and said, "Son, I'll do better than that. I'll demonstrate it for you. Go and ask your mother if she would sleep with Robert Redford for a million bucks. Then, go and ask your sister if she would sleep with Brad Pitt for a million bucks. After you've done that, come back and tell me what you've learned."
The boy is puzzled but decided to see if he can figure out what his father meant.
He found his mother and asked, "Mom, would you sleep with Robert Redford if someone gave you a million bucks?"
His mother blushed a little and said with a sheepish grin, "I sure would, but don't tell your father."
He then went to his sister and asked, "Hey, sis, would you sleep with Brad Pitt if someone gave you a million bucks?"
"Duh! In a heartbeat!" his sister replied.
The boy then went back to his father and said, "Dad, I did what you said and I think I've figured it out. Potentially, we're sitting on two million bucks, but in reality, we're living with a couple of sluts."
Not enough votes...