I'm a big fan of the making a fuss and therefore not actually having to get too close but no one should be chastised for not taking any action. I am presuming you reported it and can give descriptions of the cunts?
Sorry to disappoint everyone :-( Nope and nope unfortunately. All i could see through the throng of people was 1 angle grinding and at least 2 watching. I can do it after work but i couldnt see much through the throngs of people and the shock of seeing an angle grinder spitting out sparks... One was on a cheap suspension mnt bike with a grey white checked hoodie. No visuals on their features. Cant remember any other details