A Teacher asks the children to discuss what their Dads do for a living.

Little Mary says: My Dad is a lawyer. He puts the bad guys in jail.

Little Jack says: My Dad is a doctor. He makes all the sick people better.

All the kids in the class had their turn except Little Johnny. The teacher says: Johnny, what does your Dad do?

Johnny says: My Dad is dead.

Im sorry to hear that, but what did he do before he died ?

He turned blue and shit on the carpet