I can only think of two bad teachers and this one was a swaggering little fat man named McWhirter. We didn't like each other very much.
One day he was showing us something new in geometry -- I think we were proving theorems, but it was about 1950, so I'm a bit fuzzy on the details. He caught me reading under the desk and said, "Didge obviously knows how to do this. He can come out front and show you all how to do it."
It was something we'd never done before but when I looked at the blackboard (we still used chalk in those days) it was crystal clear and I wrote it up, explained it, then went back to my book.
I don't think he realised that I was just as surprised as he was.
