Definitely a dilemma for me too. Company policy is no weapons in building and doors are posted (although not all of them). Missouri law permits storage in car in parking garage though so I leave mine in car safe. Judging from my company's rather narrow minded attitude about other parts of our practice leaves me with the assumption that they may not be understanding despite what the law says. The gray area for me is that the garage is part of our office building. In any case I do carry an assisted folder knife and a tactical flashlight into the office and keep a small emergency kit in my desk drawer. As many of my colleagues would also probably not be understanding due to their liberal tendencies I certainly don't advertise the fact that I have a permit.