I am sorry but I dont like this.
somebody has done a bad gig[or perhaps were not suitable for the particular club],surely the organiser is partly to blame,did they not see the guest before they were booked?.
how was the guest bad,were their instruments out of tune,did they sing out of tune,were they drunk?, did they forget the words,please specify.
what does this thread achieve,apart from, teaching the organiser not to book people without seeing them.