Son takes his father to the doctor. Doctor gives them the bad news that the father is dying of cancer. Father tells the son that he has had a good long life and wants to stop at the bar on the way home to celebrate it.
While at the bar, the father sees several of his friends. He tells them that he is dying of AIDS. When the friends leave the son asks, 'Dad, you are dying of cancer. Why did you tell them that you are dying of AIDS?'
The father replies, 'I don't want them screwing your mother after I'm gone!'

Ten Dollars

Little Johnny was being questioned by the teacher during an arithmetic lesson. ‘If you had ten dollars,’ said the teacher, ‘and I asked you for a loan of eight dollars, how much would you have left?’

‘Ten,’ said Little Johnny firmly.

‘Ten?’ the teacher said ‘How do you make it ten?’

‘Well,’ replied Little Johnny ‘You may ask for a loan of eight dollars, but that doesn’t mean you’ll get it!’