I went out to a bar one night that was hosting a long evening--four performers. The first was local [Houston], the second from Austin, the third from Louisiana, and the last again from Austin. Performers 1, 2, and 4 were repeat acts; performers 3 were new to the place but were a good band (I'd seen them before somewhere else).

Act 3 had been left off of the posters and website advertisements, and the announcer that evening, whom I suspect was drunk in addition to being ignorant, introduced them as "some guys I never heard; I think they're like zydeco or something". They were Cajun, but in this part of the country it makes a difference. As it turned out, they were the best act of the night but were treated pretty crappily by the venue.

They did come back a few months later, though, to a better reception, so I guess the place redeemed itself.