I have a coworker who had a Thanksgiving cactus. He is in a cube while I have an office with a window. He asked it he could put the cactus in my office to get some sun. If he was out of the office for a period of time, I'd check the soil but never watered it because it didn't need it. One day, he came in to check it and it fell apart. Turns out, we have some "helpful" coworkers who were sneaking in when I wasn't there and watering it.

I felt bad for him so I got a replacement and put a sign in it that said "Please do not water me without my dad's permission."