How much did it cost the airline, an expense passed on to us, to divert the flight?  Having been a passenger on a flight to see a dying relative, make an important meeting, reach a connecting flight, I can say with great confidence that someone's need for booze does not outweigh the safety, happiness and wellbeing of everyone else on the plane.  If you need a drink so badly that you cannot do without it for a few hours, than you have a drinking problem.