Two homeless men, Bob and Tom, are walking down the street.

They pass a restaurant that is packed with people hungry during lunch hour.

Bob pulls a $2 bill out of his pocket. He has a nasty sense of humor, so he says to Tom, "I'll make you a deal. If you can make those hungry people push their plates away, I'll give you this $2."

Tom accepts. He walks up to the front window of the restaurant, snorts, and shoots the largest, stickiest, brownest ball of mucus onto the window. Of course, everyone in the restaurant pushes their plate away. One even throws up!

Bob hands Tom his $2. However, he says to Tom, "I bet I could get the $2 back from you."

Tom replies, "Alright. But you have to make the rest of the customers puke too."

So Bob goes to the windows, takes a deep breath and slurps.