I just find it hilarious that the people who say it's a fantasy for an armed citizen to confront a mass shooter are the same ones lining up to tackle the guy during his reload (because he only has ten rounds).

Pro tip: if you're within three yards of the guy, tackle him now. Don't wait for the reload. If you're outside of three yards, if you wait for the reload you'll get just close enough for a point-blank shot to the face.