Being asked to take their mask off in a belligerent way. We can argue about the relativity of violence all day long - but the fact is that this behaviour was not really heard of before the protests began and can be traumatising. My friend was with a group so they were able to handle the situation but there have been incidents of things going worse.

Moreover, the mask mandates are provincial, not federal. If people are opposed to that, they should go heckle at Doug Ford, the Ontario Premier in Toronto, not at Trudeau in Ottawa. The fact is that the protestors don't have a common coherent narrative.