I saw Tool at a festival and it was the worst crowd I've been in by far, there was even people flipping off and throwing stuff at the band that played before, My Bloody Valentine (which are a highly influential band in the shoegaze genre). Both these bands were my two biggest draws to the festival and I couldn't enjoy either of them due to how shitty the crowd was. I blame the Tool fans. They were headlining so no other band was playing after, and there was other stages playing at the same time they went on that non-Tool fans could've been watching.
I saw APC and Puscifer at seated theaters and that was a much more cleaner crowd though.