Some Kids Need a Visual Aid

I've decided I'm really going to crack down on cell-phone use in my classes this year, and so I read the kids the riot act on the first day of class: I explained that phones are a distraction and an attractive nuisance that the teenage psyche cannot handle-- and I cited the fact that schools that ban phones see an increase in test scores-- and this seems to have had some impact, but I think to really hammer the point home, I need a visual aid, so I'm going to get a little aquarium and fill it with water (and maybe some colored gravel and a piece of coral) and then throw some old cell-phones in there and tell my students that if I confiscate your phone, that's where I put it . . . and, if I get really motivated, I'm going to set up a stooge with an old phone and pretend to confiscate the phone from him or her, and then toss it into the tank . . . if I forget to do this, someone please remind me.