Quite a few years ago I was a Capt. on a B737 from Cairns-Brisbane when a F/A asked me what she should do about a very drunk , beligerant and abusive bloke down the back.
I decided to go and have a little " chat " with him .
I explained to him that Rockhampton airport was 15 mins. ahead and if he did not do as I told him we would divert into there.
It was further explaned the the very large Commonwealth Cops would come on board and remove him.
When I told him it would be most unfortunate that he would probably trip and " fall down " the airstairs , trip and fall whilst getting out of the police car and slip and fall face down whilst being escorted to the cells he went very quiet .
I said that all of the forthcoming " bruises " on his face etc. could be explained by his falling whilst drunk , this made him go quite pale.
He had the choice , sit down quietly and drink only coffee or possibly suffer a " few " accidental injuries.
Needless to say it was a pleasant quiet remainder of the journey .
I don't suppose one could do that these days as leaving the flight deck is a no no .
Ah !!!! the good old days .
