That's Really, Really Nasty & Practical

3 bums were outside a bar.The first one went in and asked for a fork.The second one went in and also asked for a fork. Then the third one went in and wanted a straw. At this point, the bartender became curious.

"How come all your friends want forks and you want a straw?"

"Well," the bum said, "the dog threw up and the chunks are all gone."