As far as how much this guy had to drink, just put that aside. Here's what I'm confuse about. He probably had a good hour or more from the time he got up to the time he went through security. He had plenty of time to call in sick or find a way to take himself off the trip, but choose not to. Having to explain to your base manager or chief pilot why you didn't report for the flight at an outstation, would be better than what this guy will have to go through.