A drunken guy was staggering along the road, throwing empty beer cans into the street. His singing gained the attention of a passing policeman who decided to question him.

“What do you think you’re doing there?” the policeman asked.

“I’m on my works out” came the slurred reply.

“Then” the policeman queried, “where are all the others?”

“Ah” the man grinned, “You see officer, I’m self-employed!”