Well, there was that time when the outgoing administration removed the 'W' keys from many of the keyboards and did other damage. http://www.nytimes.com/2002/06

Well, there was that time when the outgoing administration removed the 'W' keys from many of the keyboards and did other damage. http://www.nytimes.com/2002/06/12/us/white-house-vandalized-in-transition-gao-finds.html http://www.nytimes.com/2002/06/12/us/white-house-vandalized-... Given the animosity of the Democrats towards Trump, if Trump wins, I would say there is a non-zero chance that some petty vandalism will also likely occur.