My dad couldn’t close Internet Explorer (sigh I know). He kept hitting the X, and nothing happened. Nothing, that is, except for a dialogue box that said there was a problem with the tab, and it was being restarted. (Needless to say, he ignored the obvious explanation to what was happening.) Over and over again, for five minutes, he kept doing the same thing, mysteriously getting the same result. After he finally gave up, I killed the program using the Task Manager. Arguably, even someone moderately tech-savvy might not know to do that, but then he decided to turn off the computer and couldn’t manage it. After ranting at length that SOMEONE had screwed it up — he was the only one to use it since yesterday — I figured out what the problem was:
He’s left-handed. The mouse isn’t.
Le sigh.