Yesterday while I was on duty at lunchtime, we spotted a large group of year 11's (15-16 year olds) - perhaps about 10 of them - head behind one of the buildings where there's a small grassy bank. There's nothing around the back there, and it's a camera blind spot, so we figured that there was definitely something going on. Almost certainly cigarettes, alcohol or worse. I was in a 1st floor room and stayed there while 1-2 others in the room went down to check what was going on.
We saw them, and a few other teachers who had spotted the kids, go around the back there and tell all the kids to come out, stopping them and asking what was going on. Some just ran (bad idea, since everyone knows their names anyway), most looked guilty. One teacher looped around to the other side to stop them escaping that way. That teacher managed to find exactly what it was they were doing around there.
He came back from the other side carrying three full boxes of take away pizza. They had literally just smuggled... pizza... into school. It's still against the rules, so it was taken off them.
It was a very surreal experience. Definitely not what I expected to happen.