Colin W Kingsbury wrote:

An old friend of mine who was a corporate pilot swore by O2 as a hangover
cure. He said anytime he'd have to fly the day after a bad night he'd show
up a little early, preflight, then sit there with his mask on and marinate
for a while.

The groundcrew personnel in both the RAF and Luftwaffe during WWII said they
could tell which pilots had tied one on the night before by the amount of oxygen
consumed on the first flight of the day.

George Patterson
He who would distinguish what is true from what is false must have an
adequate understanding of truth and falsehood.