re: What's the dumbest thing a teacher's ever 'taught' you?

First day of high school. Home room teacher, Mr. Washington (his fro looked like Artis Gilmore's).

He is reading the student handbook to us line for line (boring). He starts discussing getting suspended and gives us an example of a suspendable offense. Calling the school up and telling them "there is a bum in the school".

I looked around and saw confusion on many faces. It took us a while to figure out that what he was telling us is not to call in a bomb threat.

I don't know who hired that guy but he didn't last a week.