All too believable, alas
Problem is, it's widely tolerated in the UK - and indeed, had you addressed them I don't doubt you'd have become a target for all four.
Was pleased to see a situation handled rather better in the US, within recent months: I was aboard an Amtrak twixt DC and NYC; a young female felt that rules didn't apply to her, and that she could travel without a ticket wherever she pleased.
The conductor didn't dally but continued with his duty. At the *very* next station, Amtrak PD boarded for a short conversation, which ended in jewelry being applied. Zero delay to train. And... who knew... if you don't accept this crap, it happens *much* less frequently!