I’m thinking in the U.S. and Canada. For example, if you’re on vacation, you’ve checked out of your hotel room and have several hours until your flight, and you have some cans of beer left over. I know you could sneakily drink them in a park or something, but I’m just curious if there’s any way to do it that’s legal.
I always assume those No Drunks rules is just to make sure the loud drunks stay quiet. Many people have a few drinks in the airport bar and stumble to the gate. As long as the drunk isn’t being loud then they are mostly ignored.