Being a DJ for some 38 years you can imagine that I have had some very bizarre instances, but one stands out more than most of the others.
I was playing in a club in Leeds, now called 'HiFi' but then called 'Liquid'. I was playing along merrily to a packed club with no problems. Can I add here that the DJ stand was in a corner of the club which consisted of not much more than a sturdy table with the equipment on and no protection from knobheads, of which one now enters the story.
So there I was playing away, when the aforementioned person came up to the DJ stand looked at the record that was playing, stopped it with his hand, turned it round so the the label was the right way for him to read it, turned round to his friend and said;
'See, I told you it was that one".
He then let the record go and carried on as if nothing had happened.
I was so stunned as were the folk that saw it happen, that we didn't say or do anything, just carried on regardless and spoke about it for years later
As I say, there are many more instances that have happened to me whilst DJing, but I'm saving them all, as I might write a book on it one day :-)