I was at the range today testing out a few modifications I made to my glock and my J frame. I go in and there is this older guy with an oxygen tank at the center firing lane just shooting away. It was one of those rather large ones, on wheels. I was rather worried. I mean, one richocet or something and we're pretty much done for, right? I dont have a medical degree but I do have a Ag science degree and I know that you dont leave the Air or Acet bottles just "around." This may be a completely different situation but yall tell me what you think. Lets just say I left as soon as I proved my modifications, about 200 rounds earlier than I wanted.