[just another ref]

I guess this is a REALLY RURAL area thing vs. an everywhere else thing. Not sure if they still do it this way, but up until just a few years ago for our local kids rec league, here's how it worked. The principal lived just a couple of miles down the road from the school. She kept the gym key in a little box on the wall under her carport and made this known to all the coaches. When your team had practice, you went by her house and got the key, and returned it there when you were done.