I'm not sure I should be posting here, because I haven't played at an open mic night. There's a place just a couple of blocks from my apartment that has one once a month and a session (a word I learned here) once a month on another night. I've been considering going to the open mic night, at least to have a listen. I think my repertoire might not fit in with what people expect and/or want.

Anyway, what I really wanted to say was that I think rescheduling is definitely an affront. It once happened to me at a conference and I put up with it. If it ever happens again without a very good reason, I will refuse to speak or play or tap-dance or whatever and might leave entirely, depending on circumstances. Nor would I hesitate a single second to start a competing event. At that point, they could take a flying leap as far as I'm concerned.