A little black boy covers himself in flour & approaches his mom.
He says,"Look, Mom, I'm a white boy!"
Mother spanks him on the bottom & tells him to go show his 
father.

He goes to his father and proclaims, "Look, Dad, I'm a white 
boy!"
His dad spanks him on the bottom & tells him, "Boy, go show your
grandfather that..."

So he gets to the livingroom where his grandfather sits and he
shows
himself to Grandpa. "Grandy, I'm a white boy!" Grandy gives him
the
spanking of his life & tells him he's an idiot. The boy runs out
of the room crying to his mother.

Mother asks, "Now did you learn your lesson?"

The boy says, "Yes I did. I've been a white boy for 3 minutes &