I can't count how many times I did this to someone when I used to play Call Of Duty. People rely way too much on the radar in that game. I'd just see them, fire my weapon at absolutely nothing, and they sit there aiming at the direction of that dot that showed up..

Either that or I'd see them as I ran by, and I'd just keep running as if I didn't see them, so they'd go around the object I'm running past for a sneak attack and I'd end up knifing them in the back while they probably say something like "OMG HE KILLED ME, WHAT A NOOB!" or if they're like a friend that played, they'd claim I used 'aim bots' or 'lag switches' to somehow get behind them.

edit: Holy fuck, what's with the downvotes? Guess I shouldn't mention that video game ever again. It's even more hated than macs.