Drinking and firing guns DO NOT MIX. First off I may have a glass or two of wine with dinner, or a cold beer on a hot day. otherwise I don't drink or do drugs. Especially when handeling fire arms.
My only experience in this situation was recently. A guy I know, husband of my wife's friend, He invited his friend to come shooting with us. He had a nice Colt 1911 said he was holding it for a friend who was in the service. He then says, "Can I borrow some money for breakfast", so I give him a $20. He leaves and comes back with a paper bag with a 12 pack and change. I say, "You're not going to drink & shoot are you?", he responds , "sure Why not". At the range smelling of beer the Range offices is standing behind him as he violates almost every range safety rule. The officer gives him a quick lession in proper gun handling and after that he takes 3 more shots and sits down for the next hour and a half while we finish our shooting. All the time hounding us as to when we can leave. Good thing we took separate cars and he drove with the other guy. they leave I finish my session.
I tell the guy before he leaves he not only shouldn't fire a gun he should not be in posession of one especially one that does not legelly belong to him. Then the fool asks if I want to buy it for $800.
I'm so glad he didn't hurt anyone or himself.