Really? Grown men are so angry about the national anthem, challenge each other to fight, and then flail furiously missing every punch.
You are just embarrassing yourself in this thread, especially with your initial claim that you watch a lot of hockey.
The vast majority of hockey fights cause no damage, because they start with both guys having a helmet/shield on their head, and the loose sweater allows the opponent to at least partially restrict the other guy’s arm movement and keep him from throwing effective punches.
Fights between the small number of players who have fighting as a larger part of their game, like a Ryan Reaves, are more likely to have a real punch connect. Or, the Rangers recent tough guy Matt Rempe who has a lot of will to fight but has taken more good punches than he has given because more experienced guys know how to tie his punching arm up.