Me too, although the last few times I was in a lounge car pre-Covid, things seemed fairly sober. I did once (in about November 2017) sit next to a retired army officer in the northbound Aberdeen lounge who became so drunk that he walked to the toilet and returned with his trousers halfway down his legs, walking straight into the glass partition (as found in the Mk2s) in the process. I also distinctly remember a Charlie Chaplin-esque figure with a broad Cockney accent and severe body odour who started running up and down the Inverness lounge car one Friday night shouting ‘give me whisky’ at startled passengers, before sitting down next to a quiet, elderly Highland couple and yelling ‘och aye the noo’ in a hideous mock-Glaswegian tongue. He seemed to enjoy downing (in its most literal sense) a few more drams as he shattered this couple’s peace, swinging on the loose chair as if it was a see-saw and throwing crisps (which belonged to the poor elderly lady he was sitting next to) at the train manager as he walked through. The crew (and a number of passengers) became increasingly irate and I think, eventually, he was told under no uncertain terms that if he didn’t go back to his berth and stay there the BTP would be called to remove him at Doncaster (this was an ECML diversion in February 2016, if my memory serves me correctly). Perhaps, with hindsight, he should never have been allowed in the lounge in the first place, as he was already steaming when he boarded the train.
The Inverness crew did not call that shift ‘mad Friday’ for nothing, although hopefully passengers like him were few and far between!