In football and hockey there is no "possibility" - 22 dudes are physically aggressive with one another every....single....play. (Or 11 in the case of hockey) The fact that you keep seriously suggesting this analogy is baffling. I have to believe you understand how deeply flawed it is but keep floating it for some purpose I have not yet gleaned. There is no "boys will be boys" and no one I read here said any such thing. Munnerlyn deserved to be penalized and was. But what he did was be too physical in a physical sport. Not start a fight in a non-physical sport. The only analogies in football are things like a guy stomping someone's facemask with his cleat or attacking someone with their helmet off - those are rare instances and I'd be every bit as harsh on them. I've already said I'd ban fighting in hockey if I had my way and I feel the same about swinging sticks. There is no hypocrisy. I realize that's the only way you think you can make your position tenable but, sorry, no hypocrisy here. Most everyone who has posted in this thread and called out your first post take the same stance in all major sports. The position here is consistent. We should be talking more about why you are glorifying the dirty nonsense because no one else is. As for rivalries, I'm not being selective: the two largest factors in every rivalry are very simple - geographic proximity and high stakes play. Those two factors tend to drive the other things that add spice to it like dirty play and guys switching allegiances and all the other stuff. You're suggesting dirty play is the cause of rivalries, I'd argue it's the effect of the passion involved in them. In other words, the rivalry has to already exist to drum up the passion for dirty play. Rarely is it the reverse. But by all means, since you have made that claim - let's see a list of specific examples of teams where no rivalry existed but one dirty play cemented a rivalry.