A member of the crowd climbed on to the stage and was quickly tackled by security, causing them both to knock into Windstein. The frontman, who didn't see events unfold, then aimed a kick at the fan - a reaction which angered some people. But he says he reacted angrily because he was taken by surprise and thought he was about to be assaulted.

He tells Echo Asylum: "That show was a no-stage-diving, no-crowd-surfing event, so you don't expect people to be on stage. When I had my eyes closed and I was singing, I got hit. I didn't get hit hard and it didn't hurt bad but it shocked me. But when I looked down and saw the security guy had tackled the kid, all I thought was this kid was trying to f***ing attack me.

"It was kind of, like, 'You stupid f***ing a**hole.' But after seeing it, I understand why people got aggravated, because they've got a kid jumping up and down and the security guy came out and tackled him and flew 10 yards into me."