Those white boxes with a metal knob sticking out. They're located in almost every fast-food bathroom in America, and in all theme parks. *Supposedly* they're supposed to put out hot air but they never do. They take forever to get your hands dry, and most of the time it takes more than 1 cycle for it to work completely.

The concept behind them was that they saved paper. They no longer use paper towels which not only mess up the bathroom but hurt the environment. However, why can't people just use those old Linen towel thingies?