When playing hvz, stumbling was pretty common. Out of 40 players, one or two would get scraped up on the concrete per game. Running into walls, poles, and trees

When playing hvz, stumbling was pretty common. Out of 40 players, one or two would get scraped up on the concrete per game. Running into walls, poles, and trees pretty much never happened. The streets were very strictly off limits. And if there was a car (like a Public Safety vehicle) patrolling the campus sidewalks, all play stopped until the car was a certain distance away. No running, tagging, or shooting on the streets or by a moving car (parking lots were okay IFF there were no moving vehicles). Anybody in violation was immediately thrown from the game and banned from the next. Safety under these conditions was not ever a problem. A sprained ankle was the worst injury we ever had, and that's going to happen in all sports.