Bardsford, you are not making it up, only we called it Annie-Annie-I-Over and if the ball didn't make it over the top of the roof you yelled "Pigtails" and if you caught an incoming ball you ran around the building and tagged the person on the other side, but I can't remeber what happened next.

A variant was played in Junior High over the school roof (by someone whose name I won't mention) with a large rock. There was a loud crash of broken glass and it wasn't untill 30 years later, when talking to an old school mate, that he recounted the time he was sitting in the drafting room at lunch, working on a project, when a large rock came through the skylight and landed on the desk in front of the teacher. Seems it shook up Mr. Bagshaw quite profoundly.