cross-posted from: https://hexbear.net/post/7671573
Sweden knew Canada's Marc Kennedy was a notorious cheater.
So they set up a camera at the 'hog line' to record it.
And caught him doing it at the Olympics.
It really isn't. Those rocks are heavy, a light touch like what's seen in the video would have very little impact.
Changing the friction of the ice on the other hand has significantly more impact because of how heavy the rock is.