The difference between "Potentiality" and "Reality"

A joke my ex-colleague sent to me.
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Youngest Son: "Tell me Daddy, what is the difference between "Potentiality" and "Reality"?"

Dad : "I will show you".

Dad turns to his wife and asks her : "Would you sleep with Robert Redford for 1 million dollars?"

Wife : "Of course! I would never waste such an opportunity..."

Then Dad asks his daughter if she would sleep with Brad Pitt for 1 million dollars.

Daughter : "Wow! Yes, he is my fantasy!"

So Dad turns to his elder son and asks him : "Would you sleep with Tom Cruise for 1 million dollars?"

Elder son : "Yeah! Why not? Imagine what I could do with 1 million dollars.

I would never hesitate!".

So the father turns back to his younger son saying :

"You see son, "Potentially" we are sitting on 3 million dollars but in "Reality" we are living with

2 prostitutes and 1 gay!!!"
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