A teacher asked her students how to be polite & tell a girl he has to use the bathroom at a dinner table.
The 1st boy said: Excuse me I have to pee.
The 2nd boy said: May I leave to go to the bathroom?
The 3rd boy said: Darling, may I please be excused for a moment? I have to shake hands with a very dear friend of mine, who I hope to introduce you to after dinner.
The teacher fainted.