On the subject of noise whilst riding, I was just out and was waiting in a two lane queue at some traffic lights. me on the edge of the left lane and a massive Travis Perkins lorry in the right. When the lights changed my lane set off, but the guy at the front of the right lane dawdled a bit, causing the lorry to let off his horn about a nanosecond after the green light.
And I surprised myself by how loudly I managed to yell “Shut the fuck up” at him.