Fwd: Understanding your terminology

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  Brad Pitt for a million dollars.
 
Then ask your sister if  she would sleep with Brad Pitt for a Million dollars, and then ask  your brother if he'd sleep with Brad Pitt 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 Brad Pitt 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 University!'
 
The boy then went to  his sister and asked, 'Would you sleep with Brad Pitt for a million  dollars?'
 
The girl replied, 'Oh  my Gawd! 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 Brad Pitt for a million  dollars?'
 
'Of course,' the  brother replied. 'Do you know what a million Bucks would  buy?'
 
The boy pondered the  answers for a few days and then went back to his dad.
 His father asked him,  'Did you find out the difference between 'potentially' and  'realistically'?'
 
The boy replied,  'Yes, 'Potentially', you and I are  sitting on Three million dollars.
But 'realistically', we're just  living with two hookers and a queer.