It's pretty much a ritual of mine to be and stay hammered most of my travel day.
Chug most of a half pint of liquor in the parking garage, double of Johnnie Walker Black for pretty much every hour I'm in the airport, order some mini bottles (or carry on my own) on the plane, sleep until my destination, and then do whatever it is I'm doing that day.
But then, I handle my alcohol extremely well (and have the red hair gene that makes you less susceptible to its effect and process it more quickly). So I don't really get in trouble.
My thought is that it should be legal to use force to save a life in these circumstances....but this is the US. It'll just end with everyone in the house shot.