Quote Originally Posted by NeoMorph View Post
When our Maths teacher used to get caught out making a mistake on the blackboard, pupils would call him out on it, he would blush, turn around and grin and then say...

“Just testing!”.

It was like his catchphrase for when he screwed up... so much do that the whole class would join him saying, “just TESTING” along with him.

But of course he never got anything wrong. *wink*
Nobody is infallible, although I did have a college lecturer who thought he was.
He tried to tell me I'd got some vector calculations wrong, as they didn't match his, and was revelling in the glory that I'd got something wrong, until he went through my calculations looking for my mistake, and realised there wasn't one.
I got told to sit at the back of the class and keep quiet after that