I have pretty simple rules about this.
First, I rarely drink at all. I haven't been to a bar in probably 3 or 4 years.
Usually if I have a beer, it is at home on the couch. If that is the case, I will leave my CCW on my hip.
If I have 2 beers, than my CCW goes in my office or bedroom. Doesn't matter if those beers are 4 hours apart.
If I go out, and end up at a restraunt, and decide to have a drink, my rule is one drink, consumed slowly throughout the meal. And that is rare that I even do that.
While I believe alcohol and firearms don't mix, I am also not really willing to give up my ability to defend me or my family, even if I have one drink.
I know at one drink I am still capable of driving a motor vehicle legally and responsibly, and that is more difficult and dangerous than a firearm.
My other hard and fast rule, if I have a drink, is that my firearm stays in my holster. That means, if I am at home, I won't use that oportunity to clean it, check it, or do any dry fire practice.
I.G.B.