I recall listening to someone from Manhattan, NY describing an urban legend; a DirecTV antenna suction cupped to an apartment 30 or 40 stories up. The occupant brought it in every evening after watching television, and carefully "temporarily" installed with the suction cups every night after work. Management had a problem with permanent installations on the building, and there wasn't much of a ledge to hide it.
The temporary installation was noticed one weekend during a period of high winds, when the suction cups did not hold, allowing the antenna to swing down over one story below by its coaxial cable. Thoughts of horror crossed some people's minds when considering that the coax might have been loosely finger tightened, and could have dropped several hundred feet below to the ground. The owner of the dish VERY carefully pulled it back up without incident, but retained a state of paranoia afterwards.