(bear with me, there is bingo content)
Many years ago when I lived in Swindon, my blues-rock trio (Hendrix, Gary Moore, ZZ Top etc, and though I say so myself we were really good) had a booking at the Plessey Social Club... when we walked through the door, we lowered the average age in the room by about 40 years. As we set up, I could feel the glares from the light-&-bitter brigade burning holes in the back of my head. We had backline and a vocal PA only, nothing DI'd or miked up -- Steve the drummer was first to get set up, he sat down and picked up a stick and hit his snare drum ONCE... and I heard a croaky old voice from out in the shadows say, "ooh, it's a bit loud...".
Predictably the first set was horrendous, every song met with almost total silence apart from a few “turn it down!”s from some of the oldies and some muted applause. One of them even walked up mid-song, stood right in front of me and stuck his fingers in his ears and bellowed “It's TOO LOUD”. It really wasn't. Our amps were barely ticking over.
The end of the first set couldn’t have come soon enough for me. During the interval, the club MC asked if he could borrow one of our mics to do the bingo. (see, I told you!)
Eventually we couldn’t put the second set off any longer and trudged dejectedly to the stage. I was just putting my bass on when a woman approached me. I thought, if she tells me to turn it down I’m just going to pack up and sod off home, and to hell with the fee. But she said cheerfully, “OK lads, all the miserable old farts have bugggered off home, they only come for the bingo... you can turn it up now”. So we did... needless to say, the second set was a lot better and we never set foot in there again.