HOW TO HACK: Prevent an elevator from stopping at any floor except your destination.

The Close Door Button and Your Destination's Button

This is a trick left over from the days of swanky hotels when a bellhop would use it to prevent a V.I.P. from having to share an elevator with a commoner. By holding down your destination and the close door button at the same time, you'll prevent the elevator from stopping on any other floor. You'll find this trick works on most name brand elevators (including Otis and Dover) though it can be turned off by the building engineer. Still, you may find this trick extremely helpful at noon when you're trying to leave the building for lunch.