I know of no laws regarding alcohol consumption that require the server to know the body mass of the drinker or their inherent tolerance for alcohol.

There are no exceptions to the 0.08 DUI limit for “ very experienced” drinkers....

After having watched a ‘buzzed’ passenger become sexually aggressive to a woman — especially when she was unable to leave her seat — I have become firmly in favor of two things:

— LOW limits on total alcoholic drinks served on planes. No one *needs* to fly buzzed
— airlines have to be legally and financially liable for the actions of drunk passengers to align their corporate financial interests with passenger safety