The constantly-opening Help window...

One of my users came into my office today, complaining that the Microsoft Office "Help" window kept coming up. Every time she closed it, it would open right up again.

So I go in there, and sure enough, when I close the Help window, it comes right back up! But then I look down at the keyboard... it's on a sliding keyboard tray that can go under the desk. And that's exactly where it is now -- partly under the desk, with the F1 key jammed under there and held down.

After laughing my head off, I pointed out the problem, lowered the keyboard tray a quarter-inch, and told the user to be more careful!