Urinal Puck

It's amazing how many people I talk to that do not know what a toilet puck is, until I explain it to them several times. Everyone knows the urinal puck though. So to make it crystal clear what a toilet puck is, I made a scene where the janitor tosses pucks into the urinal. A couple scenes later he puts a clip on the same pucks and sticks them on the toilet rim. Brilliant!