A teacher was trying to teach manners to her all male class.

"Meeting a lady on a date,how would you tell her water you need to pass?" 

Tom said,"Please excuse me ,I'm sorry I need to go to the loo."

"Yes that's sensible,a good response from you."

Jake who was the naughtiest of the teenage bunch,

Said,"I have to shake hands with a friend,whom you'll meet after lunch."

The teacher fainted.