For many of us a gun would be the only chance we have to survive an attack by an NFL linebacker.
If he forearm blocked you while running full tilt, that itself would do damage.
You kind of beat me to it.
I just came here to say that Kasandra Perkins’ only chance to survive a life and death encounter with Jovan Belcher would have been, ironically enough, to be armed with a gun herself. Even a tiny woman can pull a trigger. Belcher was a big, big man but a single bullet is all it takes to put a big, big man in the ground(Belcher proved that very fact with his last act.) Like the old saying goes: “God created man, But Samuel Colt made them equal.”