The Back Door...Toothpick
One night a bartender was closing up his bar and he hears a knock at the back door, so he goes back and opens the door and there stands a bum who asks, "Can I have a toothpick?"
So the owner gives him a toothpick and continues cleaning up his bar.
Five minutes later he hears another knock at the door, he goes and answers it and there stands another bum who asks, "Can I have a toothpick?"
The owner gives him a toothpick thinking nothing of it and continues cleaning up the bar.
Five minutes later he hears another knock at the back door, so he goes and answers it, and there stands another bum who asks for a straw. The owner gives him a straw and asks at the same time what's going on.
The bum replies, "Some lady threw up in the back and all the good stuff is gone."