Stick it to the man
In many ways, dealing with an annoying coworker is like dealing with a rude neighbor – you can either take the high road, be the bigger man and other cliches, or you can stoop to their level. It seems clear which of the options this person went with. It’s important to know how to take the high road and not hold a grudge, but it’s also important to stand your ground.
This person used to take office supplies from his coworkers without asking and lose them, and so his coworkers found a way to ensure he doesn’t lose the sticky notes ever again. They covered his work station with sticky notes end-to-end, and while it probably wouldn’t take as much time to get them off as they spent sticking them, it sends the message loud and clear.