This just seems to make sense

Sorry if you disagree but think it through...

I do not think that "gun free zones" are a good idea. You are basically telling non-law abiding people where they can carry on without worry. In my opinion, if you as a business or organization declare a zone to be free from a citizen's ability to protect them selves then you are assuming all responsibility to protect them while they are within your "zone". That should mean that if someone gets attached and/or shot by someone else not abiding by your zone, you should be responsible for that act and be libel because you failed to properly protect them while they were in your zone.