Omg Cathy, once I did get locked in the school! There was a half day teacher strike so we all had to go home at lunchtime. I went into my classroom and there were several others there also getting out coats and bags. By the time I got my stuff ready I turned round and no one else was there - I went to the door to get into the corridor and it was locked!!

Luckily my friend and I were supposed to walk home together so she came looking for me and found I was locked in. She went looking for a teacher to let me out, but the teachers just said 'sorry i'm on strike'!!!

By this time I thought I would have to stay there all weekend

Eventually my friend found a caretaker with a key but it was terrifying.
I do also have nightmares about school. I dream that I havent done my homework, that I am late for class. One of them is that I go back after the summer holidays and dont know which class the next lesson is and dont have a timetable and am just wandering around wondering where I should be. Last night I had a new dream about school, that I went back to school and I was 25 but all the other kids were 14-16, I felt really odd and couldnt figure out why I was back at school at that age. It's not like I am 25 even, I'm 31
I still dream about the 'friends' who bullied me at school and all sorts of dreams end up taking place in classrooms and in the school corridors etc. We spend a lot of our life in school so it's no wonder it has such a big impression on our minds. You might have been reminded of school by a smell or something you ate or something that one of your kids told you happened to them.
Last night I also dreamed I went back in time and was back at school, I saw a good friend who I havent seen since i was 17 and I 'had' to go up to her and tell her a message, that if she got in touch with me she 'must' try again if I didnt respond the first time. In the dream this was my chance to change the outcome of the future, but it was just a dream. It's kind of sad but there is no way to get back in touch with her and I do wonder where she is now and if she has children etc.