Potentially and Realistically

A young boy went up to his father and asked him, "Dad, what is the
difference between potentially and realistically?" The father thought
for a moment, then answered, "Go ask your mother if she would sleep
with Robert Redford for a million dollars. Then ask your sister if she
would sleep with Brad Pitt for a million dollars, and ask your brother
if he'd sleep with Tom Cruise for a million dollars. Come back and
tell me what you learn from that" So the boy went to his mother and
asked, "Would you sleep with Robert Redford for a million dollars?
"The mother replied, "Of course I would! We could really use that
money to fix up the house and send you kids to a great college!" The
boy then went to his sister and asked, "Would you sleep with Brad Pitt
for a million dollars?" The girl replied, "Oh my God! I LOVE Brad
Pitt! I would sleep with him in a heartbeat, are you nuts?!?!?" The
boy then went to his brother and asked, "Would you sleep with Tom
Cruise for a million dollars?" "Of course," the brother replied. "Do
you know how much a million dollars could buy?" The boy pondered that
for a few days, then went back to his dad. His father asked him, "Did
you find out the difference between potentially and realistically?"
The boy replied, "Yes, sir. Potentially, we're sitting on three
million dollars, but realistically, we're living with two sluts and a
queer."