That being said
After about thirty years of doing support I find myself getting stumped from time to time by one or two of the public PCs where I am a volunteer worker ( not IT). I don't often have to use them, but sometimes a member of the public will say one isn't working and I can see that someone has switched it off so I need to switch it on again. It's a rather small, dark grey strip of plastic, standing out about 2mm on the front of a dark grey box covered with bits of dark grey trim, that all look exactly like the damn button. So I spend a couple of minutes pushing little bits of plastic until one moves.