Being a pedestrian I get the raging tic for loud vehicles easily without any metal cage assistance. And sure I try to not get annoyed by their insane noise pollution and disruption of pleasant conversations or enjoyment of sound in a large radius. But fundamentally I believe that as the driver of an unnecessarily loud vehicle you* are an arsehole.

*you as in the driver, I am aware that the parent poster is not necessarily driving a loud vehicle.

I completely agree road rage is a terrible thing; I agree we are all responsible for our own behaviour; and as drivers we should not allow such things get to us.

But a needlessly loud motorcycle, particularly the kinds that "detonate/explode" on shifts/off-gas, will make me jump and annoy no matter what I'm doing - reading a book, having a coffee, mowing the lawn, going for a walk, playing with my kid, whatever... especially since unlike some similarly annoying sounds (Snoring, anyone :P), it is 100% purely intentional. This rider went out of their way to make it such, knowingly and willingly they spent money time & effort.