“Michael, if you were on a date having dinner with a lovely young lady, how would you tell her you need to use the restroom?” asked the teacher
“Just a minute, I have to pee” answered Michael.
“That would be rude and impolite” said the teacher. “how about you, Sherman, how would you say it?”
“I’m really sorry, but I have to use the bathroom. I’ll be right back” responded Sherman.
“That’s better, but it’s still not very nice to say bathroom at the dinner table. How about you, Johnny? Can you tell us how to use good manners?” said the teacher.
Johnny replied “I would say: Darling, may I please be excused for a moment? I have to shake hands with a dear friend of mine who I hope to introduce you to after dinner”