Too clever for my own good
The rule at school for most of my time there was that schoolbooks had to be carried in a briefcase. Sports bags were acceptable for sports kit, but books had to travel to and from school in a hard leather box, meaning that on days with PE, I had to struggle to school with both a case and a bag. I thought this was ridiculous, and though some of the teachers agreed with me and would be lenient about it, my maths teacher was strict to the point of apoplexy. I'll never forget the day I swung into his lesson with my sports bag over my shoulder and not a briefcase to be seen. His face turned purple and he just shouted "OUT!" pointing at the door. I shrugged, walked out and stood in the corridor where I was accosted by the deputy head shortly afterwards, demanding to know why I wasn't in my lesson.

I said that I had been sent out without explanation. He marched me back in and consulted with the maths teacher who told him I had been sent out for flagrantly disregarding the school rule that I had to bring my books to the lesson in a briefcase. The look on his face when I unzipped my bag and produced a small but perfectly formed briefcase containing my maths books was priceless. He stammered and spluttered but he knew I'd made him look a tit in front of the deputy head and the class. Of course the upshot of this was that both he and the deputy head hated me for the remainder of my time there, but it was so worth it.
( emvee cruor deo cruoris, Tue 3 Feb 2009, 13:48, Reply)