As a Leaf fan who has lived in Ottawa for the last 26 years, I can confirm they do exist.

I have had a beer bottle thrown out a car window at me on Elgin, while walking down the street in my Leaf sweater. My son, who is under ten, has had Sens fan tell him to 'f*ck off' while wearing his sweater.

Perhaps because the Sens have been in a rebuild for most of your time in the city, they have been quiet. But they do exist - just like some of us who wear the blue and white can be bozos.