Then banning assault rifles shouldn't trouble you much, just get on with your life.Quote from tomdavis:
Actually, you're almost as likely to get hit by lightning sitting in a movie theater or a school as you are anywhere else because the odds are so close to zero under any circumstances.
Trying to control one-in-a-million individual human behavior events is a waste of time and effort. Be aware of your surroundings and get on with your life.