Rabbi-Sol was right in principle, arguably wrong on style but not so wrong that it matters much.

You wouldn't get your money back if you walked out on finding the music itself not to your taste. Anyone going to a folk concert and expecting not to have right-wing views challenged, if views are expressed at all, clearly doesn't get out much.

Thinking back to my days as a folk club organiser, I cannot recall with certainty whether anyone ever demanded a refund. It was a long time ago.

But so early in a gig, I'd have been inclined to take the Meself approach quoted above: ie "you should have just smiled and given them their money back in the first place, and said, "Hope you enjoy the next concert a little more"."

If they'd gone on whingeing about it, that would have merited a sarcastic putdown