The limit for pilots in Scotland is .02 -- don't even breath the fumes around a liquor bottle.
From:
http://www.bbc.com/news/uk-scotland-...-west-36832625
Originally Posted by BBC
That limit is set at 20 milligrammes of alcohol per 100 millilitres of blood for those activities carried out by aircrew and air traffic controllers.
Does UA have a bottle-to-throttle policy?