Visiting my hometown of Montreal a while back I happened upon this. A mass die-in. Normally I get all the memos on protests in my vicinity, but I haven't lived in MTL in a decade so I'd no idea what I was about to bump into. I had spent the day shooting headshots for a good friend when I lucked out on this. We zigged when we might have zagged and I noticed a swarm of cyclists appearing in all directions. My Troutie senses started tingling... something was going on here.... Next thing I knew, they stopped and dismounted. Right spot. Right time. Dozens of point and shoots and phones started snapping where they stood, I thought 'vantage point!' I was closer to the front so I b-lined it. I think I made a good choice.

They were protesting the death of a cyclist on Montreal street. Killed by a motorist.
It was incredible. They shut down Rue Ste. Catherine in the late afternoon on a Saturday.
Closed the city for ten minutes.
It was beautiful.
I would say that it made a lot of Montreal motorists unreasonably angry, but that would mean the protesters really had no effect.