A preacher was getting on everyone's last nerve with his horrible amp (and message), until a man with bagpipes stepped in. Hurray, Scotland!
This isn't the only example of someone shutting down hate with an absurd musical accompaniment, but it is the most Scottish one. It's true you can't quite tell what the preacher is saying, but the message board on reddit for this video is full of hilarious (and potentially false, but let's believe) details on what's happening in this courtyard scene. Even someone who claims to have been there: