Ladies, drop the cat FOOD.
Smash the kid in the face with the litter container.
Kick, knee or punch the punk in the gonads.
Gonads, ladies... Take it from a man, THAT will render a guy helpless for a few precious seconds at the least.
From my martial arts training:
Continue to strike the testicles until the person vomits and/or passes out. Once an advantage is found, use it to its fullest potential.
You must have missed the bit about the knife. Kid had the drop on her.
My daughter carries spray. Kid was too close to use it, so only a gun would have worked, and still the kid had the drop on her.
The CCW guy had the drop on the perp. This is why it ended the way it did.