I had an elderly lady who got a new computer, then called me about a week later because it was broken and wouldn't turn on. When I went over to check it I push

I had an elderly lady who got a new computer, then called me about a week later because it was broken and wouldn't turn on. When I went over to check it I pushed the power button and it came on just fine. "How did you do that?" she asked. "I just pushed the power button. This button down here turns the computer on and off." "But I always just pushed a button on the keyboard and it turned on." And then I realized that she had never turned her computer off, only put it to sleep, for five years.