If, if if. The best practice would be to keep the guns at home. There are acceptable times to have the guns in public(read; not flashing them around) such as a tradeshow and such. The idea of zombie hunters at a zombie walk is novel for sure but can lead to trouble. Most people I know treat their airsoft guns like RS guns, in cases at all times, kept away from kids etc. The locals in those pics may have been okay with it but just as sure as we're on here debating this, there's bound to be some bleeding hearts out there going all kentucky pussified chicken on a similar thread on the soccer mom boards.