It was either this or detention

I was only making faces out the window, that one up there and somehow I left smear marks on the glass and well you know what the Head is like. Next thing I know I was sent to sit on this wall to contemplate the error of my ways. I wanted to eat some lunch but I wasn't allowed to bring anything with me and I'm starving. So what did you do - were you blowing raspberries in class again, it really upsets the kids but it's such fun.

Shh, its one of the students, probably a spy for the head, say nothing we don't want to have to stay behind again.