Having a beer....
I'm sure this has been asked before - but my search didn't yield too many results...
I was told by a pilot that the minimum time between having a beer and flying a plane is 24 hours.
I found this a little hard to believe but I'm wondering what the concrete rules are, and in practice, how well these rules are enforced?
Does it vary from airline to airline or country to country? Are you governed by the rules in the country you fly out of - or by the rules of your airline?