Tangental: Reminds me how buttons in various places (I've noticed this in elevators and POS terminals) beeps when you press them. However, the beep is not reall

Tangental: Reminds me how buttons in various places (I've noticed this in elevators and POS terminals) beeps when you press them. However, the beep is not really tied to the CPU registering the event but rather the button itself being pressed. Ie, sometimes when you press the button, it clearly beeps, but nothing happens. Not sure if it's a result of underspecification or cheaping out on the electronics or both.