My viewing of the BOD incident was that both Umaga & Mealamu were attempting the 'pick up a leg and tip the guy over' style of clear out without realising that the other was also doing it too, which meant that instead of BOD being tipped off balance, he was lifted up to head height. I've always said it was reckless though, and should have seen both of them cop a suspension (Mealamu for longer than Umaga as he didn't pull out).
No-one ever taught you how to avoid getting injured in a tackle? Don't put your arm out is No 1.
The whole thing is massively overhyped - and he wasn't "driven towards the ground" watch the video.
Just rewatched it (hilarious to hear an excerpt of Graham Henry saying "I think we should move on, quite frankly I think it's ridiculous that it's continuing", makes me think he was acting like a hypocritical failed abortion much more than I first did after the Semi), I think he was driven head first towards the ground, we'll have to agree to disagree I guess. Mealamu in particular drove him to ground, with intent for me, but whatever. I agree with 2005 Father Ted and think we should move on indeed (can't remember how this started, probably me).
Oh and actually you're right Schadenfreude, I think I was told to not stick your hand out once or twice now I think about it, but the main reason I've never really done it is that I wasn't having to protect my neck/head, but had been drilled about not losing the ball in contact so I always want to have two mitts on the pill. As O'Driscoll said on one of the videos I was watching, he kind of had a split-second choice between protecting his head or not, I think trying to roll and hoping that his weight was dropped/driven/whatever in a direction that meant his roll didn't break his neck would have been unwise.
Anyway, moving on, Rougerie is a filthy eyegouger and serious foul play like that should not have a 48 hour citing period. A distinction needs to be made between reckless play (Warburton in the semi, Quade Cooper and Jacque Fourie last year) and malicious play, such as eye gouging, king hits etc.