What I hear of happening a lot is hot headed douchebags with an Internet forum law degree arguing when asked to either leave or take their firearm to the car. It's always the same argument too "I can legally carry this gun, I'm not leaving" well maybe you are legal, but once asked to leave and you refuse..... well then you get into trespassing, menancing, inciting a panic ect. If asked to leave, pay your bill and leave.