I have a collegue who was gold for years with BA, reguraly flying F. On one flight he knocked back a sleeping pill with a double brandy (first drink after take off) he then politely requested another and she refused to serve, stating that he “may” get drunk and then become a problem, he requested again, she refused.
He sat down, calmly, politley, got off the flight, cut up his BA card and has never flown with them since. Voting with his feet.
That wasnt a dig at BA as it was some time ago, just an example of how to deal with it. AirFrance, Lufthansa and of course that other comedy airline from ireland are all on my voluntary no-fly list for bad service with a terrible attitude.