1. You spray OC indoors and youre attacking yourself as well. I worked security in a bar in college and one night when someone sprayed mace/teargas/pepper spray it cleared the place out. This was a big bar and several people required medical treatment. Unless youre a trained profession with the appropriate equipment I would not spray OC indoors! Furthermore be VERY aware of the wind before spraying outdoors.

2. Baseball bats are extremely lethal!

3. Rock salt and rubber bullets are a nice idea but remember you endanger yourself and your family by making this your only form of defense. That being said, a nonlethal weapon is better defense than none at all in most situations.

I looked at the site and I think if youre going to try to load something like riot (rubber) shot or bean bags in order to do a favor to the person that invades your home armed with lethal ammunition, I would still only load the first two shells in an 8 round tube with such ammunition and have the rest of the tube loaded with the real thing. Also beware when buying this stuff. If you must buy nonlethal ammo I would suggest finding a law enforcement supplier. Theres a lot of crap out there that will make your barrel blow up in your face.

Editted: Corrected Type-O's and added some information.