Hockey is a badass sport. Why? Because even when it's played by kids who can barely walk, fights still break out. That's what you'll see in this vicious toddler on toddler brawl posted above. Although I think they don't really quite understand how it works as opposed to fighting it's more a lot of slapping, and actually for most of the video, it's two teammates fighting each other.

Do they even have penalties when you're playing super-ultra-tiny-midget-bantam-pint hockey? I imagine that would just be more discouraging than anything else. Let the little tykes slap away, they'll learn how to throw real punches soon enough, and THEN you can throw them in the box.