Baggy Mr Thompson sounds like a good teacher - taught you things you remember and had a sense of humour.
When my father was doing his teaching practice (1936 ish) he walked into the classroom to find that the boys had turned all the desks round to face the back of the room. Instead of getting annoyed he picked up the chalk, walked to the back wall and started the lesson (maths) from there. After a bit he needed to write something on the board so he turned to the wall and said, "Oh dear, someone has moved the blackboard. Sorry boys, you'll all have to turn round to face the other one" and walked to the front. General laughter, desks moved back in double quick time, got on with the lesson and they all ate out of his hand from then on.
So much so that when his supervisor came to test him and he said "turn to page 48" they said, "Oh no, sir, we should be on page 47" - which they had done already, so were able to answer smartly and give the supervisor a good impression of his teaching.