Say I'm flying right seat (First Officer) in an airplane with a required crew of two, and I'm rated to do so. The Captain gets up to take a leak as we're waiting to take the runway, and the poor Captain ends up with explosive diarrhea and confines himself to the ****ter for the remainder of the flight. Since his stool was runny, he can't log it. If fact, the flight never even happened because the required crew member (the Cap'n) was unable to crawl back to the flight deck due to excessive dehydration. He failed the IMSAFE checklist somewhere around the point where his ass hit the seat in the lav. Now, a.) if this was Class G would we still be able to serve alcohol, and b.) no matter what, anything within 5 feet of the Captain is considered uncontrolled airspace until he gains control of his sphincter. Does he still have a First Class medical at that point?