Once did a gig with a band that had a sax player, not just an ordinary sax player, oh no, but one that liked to make electronic gadgets. He made an octave generator for his sax. All the way through the gig I was constantly told to turn down as the bass was too loud. Getting well pissed off with this, I actually switched my amp off and pretended to play anything other than the song we were playing making it very obvious that the bass wasn't me. I was told to turn down again. After going to great lengths to explain that the bass wasn't too loud as the amp wasn't even switched on, they realised that the sax player was playing bass with his sax. They never apologised though.