A blind man is sitting in a restaurant.

When the waiter comes to the table the blind man asks may he please have the dirty fork of the last diner. The waiter is a bit puzzled but says ok. The blind man puts the fork in his mouth and says, "mmm...meatloaf, that's delicious, I'll have the meatloaf please."

The next night the blind man returns and again makes the same request, the waiter obliges and this time the blind man says, "mmm...pot roast, that's delicious, I'll have the pot roast please."

For the third consecutive evening the blind man returns and again requests the dirty fork. This time the waiter decides to fuck with him a bit and asks his girlfriend Jane who also works at the restaurant to rub the fork on her pussy. So Jane gives it a good rub and the waiter presents it to the blind man who puts it in his mouth and exclaims, "Jane works here???"