One day a blind man came into a restaurant. A waiter came to him and asked "Would you like a menu, sir?".

The man said "No thanks but if you bring me a dirty fork I'll tell you what I want."

So the waiter brings him a dirty fork and the blind man sniffs it. Then he said "bring me the meatloaf and mashed potatoes". So the waiter brings him meatloaf and mashed potatoes.

The next day the same blind guy comes in. The waiter doesn't recognise him and asks if he would like a menu. The blind man says, "No but if you bring me a dirty fork I'll tell you what I want."

So the waiter brings him a dirty fork. The man sniffs it and says "I'd like the lasagne with extra cheese please". So the waiter brings him the lasagne.

The next day the blind man comes in and the waiter recognises him. The waiter says "Let me guess you want a dirty fork, right?" and the blind man says "Yes I would.".

The waiter gets a clean fork and rubs it on a waitresses privates. The waiter brings it to the blind man and he sniffs it.

Then the blind man says, "Hey!! I didn't know Mary worked here!!"