I was at a private party for performers after a local festival. A wonderful woman and her family like to open their house up after the show to hear us play with each other. In exchange, she feeds us very well and many stay over. There were about 20 local/ national musicians in attendence on one memorable night.
An ex-mudcatter, well known for his boorish behavior here, had somehow gotten wind of the party and invited himself over. He was drunk (as usual).
My brother (not a pro singer, but a nice enough guy) starts singing an old Irish ballad. "Banks of Red Roses" or the the like.
This boorish peasant pulls out a penny whistle and starts toodling along. Different key...not getting many notes on anyway...loud random notes.
My Bro eventually gave up.
So I asked the boor," Do you even know the tune that he was singing"?
He replied,"No".
He left the party soon after.
BTW. This fellow is quite proud of the contribution he imagines he makes to the local scene.