One square is living dangerously, if it's just regular old two-ply paper. My guess is the first time someone pokes their finger through and finds it covered wi

One square is living dangerously, if it's just regular old two-ply paper. My guess is the first time someone pokes their finger through and finds it covered with some poo, they grab a big handful next time. And then every time after. I bet TP makers have worked out the average number of squares each person uses per sitting, but I haven't tried to find that information.