My Québécois is a little rusty, but I can imagine mom here is saying something to the effect of "Oooh, big man with a chainsaw, I bet you're not compensating for anything at all." The guy clearly wasn't looking to go all the way with the violence, but the kids in the car certainly got a scare out of it. And by scare I mean "lifelong fear of all chainsaws from this moment forward."
Try to watch this video without having a seething white-hot rage for both parties involved. Feel free to post in the comments about who was the bigger ass in this classic Seattle non-confrontational confrontation.