Teacher asks the children to discuss what their Dad's 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.

Teacher says: ''Little Johnny, what does your Dad do?''

Little Johnny says: ''My Dad is dead.''

''I'm sorry to hear that, but what did he do before he died?''

''He turned blue and fell on the carpet.''