I saw this happen to someone recently. Their phone was having other issues, so we were trying to reboot it, and Google changed which buttons you have to push to turn your phone off. You used to be able to just press the one button to turn the phone off, but now you have to press 2. So I think people might be pressing the power button a bunch of time now because they're trying to turn their phone off and don't realize you have to hold down 2 buttons now instead of one.