A black guy goes to the doctor. He cries he’s got neck pains, the doctor tells him to strip his clothes and walk on four legs and stay for a while in every single corner of the room.
The black man, get up in his feet and asks the doctor what’s the point:
“Well this is because my wife bought a new black table yesterday and I wanted to see where to put it!”
This joke is included in the Black Book of Jokes. You can order it from here.