When it comes down to it, a lot of us have engaged in a bit of banter on the field and there is nothing wrong with that - anyone who tells me its against the spirit of the game is, in my opinion, a bit of a numpty.
I suspect there must be a lot of numpties on here, myself included☺.
Of course, banter should be witty and aimed as much at geeing your own team up as anything. Threats...well, they don't really do that do they?
The latter would be a good psychology thesis but I think history (or numpties) would disagree with you.
But....I have to say that I have little problem with any of it. Its international sport, its supposed to matter and Clarke's comment to Anderson was made by a man who sensed the tide turning after five years of being ground relentlessly into the dirt. How was he supposed to feel about it? And in any event, there is a massive difference between saying it and wanting it to happen...
It would be naive to assume international cricketers are any better than the common man in their comportment because they are not selected on that basis. Yes they should be passionate but that does not justify his words or actions. We cannot know if he really would have wanted it to happen, and I would like to think he didn't, though Ret'd Hurt is one less wicket to get.
Interestingly what might have happened had there been a broken arm ensue? I like to see teams win and lose with good grace. It is my opinion international players should rightly be scrutinised for their deeds as they are role models one way or another.
In the US players can be found guilty of negligence if their actions are "deliberate, willful or with a reckless disregard for the safety of another player so as cause injury to that player." See Nabozny v. Barnhill. Furthermore, a recent Australian case, entitled McCracken v Melbourne Storm & Orcs discussed the notion and legalities concerning when an athlete purposefully aims to intentionally injure another during play.
Sorry I took that from Wikipedia so perhaps someone could take issue with the validity of that last bit.