There were a few things, but probably the best one was a group one. We went to this horrible Victorian Secondary School before heading off to the Grammar, those of us that were bright anyway. The classrooms had rather nice wooden floors and in the centre of ours was a trapdoor, all screwed down which we assumed would take us under the school, so as a class we decided we were going down there! We brought in screwdrivers and bit by bit over the next coupe of weeks the screws loosened, until one day we got them all moving. It was decided that we wouldn't do it that day, but would bring torches and go down the following day. Luckily I was off sick that day as they went down and were caught! Mrs Pennington the headmistress who always floated around in a black gown had the whole class stood up in assembly and gave them a rocket and wrote letters to everyones' parents who had to come in for their bollocking too for having such hateful disrespectful children!