Many years ago, my wife and I were in a department store when the power went out. Uniformed security guards immediately locked all the outside doors (which were all glass).

When we got to the door and saw what was happening, I walked up the to guard and said, "Open the door we want to leave." He said, "Not till the power comes back on." So I replied, "Let me see, you are holding us against our will, that sounds like kidnapping to me." He didn't reply but I could see he was getting nervous. So I said, "Let me put it this way, either you open the door or I am going throw this chair through it so we all can leave." He immediately opened the door.