A couple years back, I flew my CL FliteStreak at the school, and a couple walking their dog came over to check it out. I had an 0.049 flat wing plane that I brought along, and put the husband on the handle for a bit. He said that he was always interested in trying it, and thanked me.

About three months ago, I flew a large EDF there, and although staff was around (after school hours, no school events or kids on field), nobody said a thing. There's two guys flying sailplanes here about once a month for the seven years I've lived here. I stopped by to talk with them one weekend not long after I moved here. They left the club because it was too expensive and they learned they didn't need it to fly. In fact, there's no altitude limit at the school, where there's a 600' cap at the AMA field.

They let people hit golf balls, walk dogs, etc. All of which is during non school hours / no athletic events. It seems people are generally being smart about it.