Along these lines.....
My main assignor puts me on a few JV games every season, usually just single games with 3 man crews. Anyway, we had a ball go into the backcourt and it wasn't touched until it was on near the baseline. I whistle the violation and point to the spot near the baseline to inbound. The small crowd starts making noise and questioning the call because we are down on the baseline. When I end up by the home coach, he says, "I thought that was over and back?" I say, loud enough for the couple of rows of fans behind the bench, "Yes, it was, but the violation does not occur until the ball is touched. The in bound spot is the spot nearest the violation which in the case was on the baseline."
The whole crowd sounds like my students when I show them something obvious they missed in a problem solving exercise. OOOOHHHHHH. We get it now.