[\quote]I you need a drink early in the morning while setting up a booth, presuming it is early when they set up, then it is more of a problem than just alcohol and guns...the operators of the show did the right thing especially from liability purposes...if these guys " sipped" all day....they then have to drive too I suppose.... [/quote]
The original post does clearly say Friday night. I can't see any problem with a modest drink when working late on a Friday night.
As Mike says, its entirely normal to drink in moderation when on a normal day game shooting here in the UK. Intoxication would not be tolerated, but a modest nip of sloe gin between drives, and a glass of wine with lunch would (in my experience) be the normal practice. I have never seen anyone intoxicated whilst out game shooting (and hope I never do).
I have no problem with those who wish to abstain, and some do with most shoots providing non-alcoholic refreshments as well, but the majority of people enjoy a glass of something with friends as a part of the days activites.