Not quite everyone leaving but I attended Edgefest in Barrie one year on I like dogs and softball and maybe 3 people shirt. The band Cake was playing on the main stage a few acts before the closer who was Nickelback at the height of “How you remind me”‘s popularity. Cake seemed to be pissed off that many Nickelback fans were present and started making a bunch of anti-Canada jokes. On Canada day this was a recipe for disaster so some water bottles started to be tossed towards the stage. After one got a bit too close, the lead singer of Cake stopped in the middle of a song and told the crowd “if any of us gets hit by a bottle we will leave the stage and not come back”. I swear about 10000 water bottles simultaneously got chucked at the stage and they were booed right off.