I was thinking about this last night. There are a few times when I've had to break up fights (never between grown men who were armed, fortunately) and I started thinking about the logistics.
You start by yelling at them to "BREAK IT UP" or some such thing. If they don't, you get between them, and if that doesn't do it, you face the aggressor (or the one who won't stop, or the stronger one) and usually end up putting your hands on his shoulders to restrain him from hitting the other child.
Now imagine that on skates. Ice is slippery. If a kid is flailing about trying to hit someone, and you are trying to prevent it, that child will get shaken pretty well just trying to remain upright.
One may not grab someone else's child to discipline the kid, but if you are breaking up a fight, you don't really have a choice. You have to defend another child.
I had to learn "therapeutic intervention" techniques for dealing with vulnerable adults who could become violent. The main trick was to restrain them without hurting them, without letting someone else get hurt, and if at all possible, without getting hurt yourself. It's a lot harder than it sounds.
If you try to restrain someone who is seriously agitated, it does look from a distance like you are shaking them, when really it is their actions that cause the motions.
Like I said before, I think Milbury's an ass. I'm just playing devil's advocate here.
Aw, that is so cute. They need to get scolded and told that this sort of thing should not happen after the whistles. Then they need to be watched to see if they get any sort of high-end talent that we can draft.
Good to see the little guys standing up for themselves. People just don't do that any more.