Was playing a big Halloween party in cover band, and this friend of BL shows up.....wheels an amp and effects on stage, takes over a huge portion of stage including my mic, and seems to think that it's okay. Good thing he didn't sing or know most of the material. Am I missing something? Seemed really not cool. First two sets before he showed up were good.....then it spiraled downhill. Other guitarist next to me was also pissed. Bad band karma...... What do you think?