This was back in... 2012, I think. Peace and Love festival.
I was working the second biggest stage of the festival (at the time, the biggest festival in Sweden), and they were really great. Just beside the fence left of stage laid railway tracks and apparently, a kid around 12 years old had been in an accident and died just prior to the summer. He was a big fan of Dropkick and in they went on to tell the audience about this tragedy and to hold a silent minute together in respect to this.
Complete silence. Audience included. Mid-concert. For a full minute. It was, in the true sense of the word, awesome.