But you'll be alive to stand trial. Personally I don't plan to play hero especially if I'm in an area where firearms are 'frowned' upon. My firearms are to protect me & mine and there's no shame in running first if there's egress. You may be legally within your right to shoot and free of criminal charge but the aforementioned shit storm of civil suits make retreat the best option IMO. You can do what you like & I support any legal decision you make in a split second to use force or not but I'm no hero. Hero's end up broke or worse in this nation.