You know when you see something that used to be used back in the victorian times, and think how on earth could they have thought that something so feebly designed, would be the best way to do a certain task.
My example that I want to put forward would be the dispensing taps that you get with hand soap cleansers. You're supposed to be able to push the tap down, and sort of twist it, and it will pop up. Enabling you to be able to dispense soap at your will.
Great idea but these things never fucking ever fucking work. Fucking ever.