I like to hit hard and flatten people out too, but I have to admit that I can do it without trying to break somebody's neck or crack their skull open.
So to me that's what the rule is saying : "You guys know when you're over doing it and we are going to call it now".
They show some serious hits in this video and you can see that some are just way over the top when "sportsmanship" is considered.
It's really only a basic "unnecessary roughness call" in simple football rules.
http://s3.amazonaws.com/ncaa/web_vid...rgetingHD.html
