I found the most effective, consistent method of triggering into a blind rage is to simply smile and give them a thumbs up. I wonder if it's something about appearing content and happy while they are bound by all the contradictions and inconveniences of owning a car, especially in a city.

I actually had to stop doing it because one guy sped up so much to beat me to the next red light, he first very nearly hit me on the way and then had to slam on his breaks so hard he lost traction and almost spun out - all this in the middle of a city intersection with narrow roads, no less.

This tracks, there's actually some evidence that drivers behave more dangerously around cyclists wearing helmets.

Scientists should study carbrains more, and try to understand why cyclists trying to protect themselves seems to attract drivers like moths to a flame.