I used to revel in light bulb jokes. I would tell one to allow me to prepare the folk club or me or both. After 6 months of "not another one please" I finally revealed that what I was doing was demonstrating a genre that is passed on by word of mouth and has no author and changes with the telling and lives in the culture. It is regarded as throw away and worthless by its perpetuators. Just like that first song Cecil Sharp collected.
In short I was doing "folk" in a folk club and they didn't suss me!
They thought I was after cheap laughs, AS IF!