A friend of ours gave us a stationary bike with the built-in computer that varies the amount of resistance over time and distance. Pretty cool, but it runs on 4 D-cell batteries and the ON/OFF switch is broken. This means the batteries have to be removed from the machine after each use or they run down quickly. Pulling the batteries involves removing 4 very easy to lose screws every time.
Anyone wanna' guess how much it gets used anymore???