In 25 odd years of watching top grade rugby I can honestly say I've NEVER seen anything get physically intimidatory, or even ugly off the paddock. Some words in the heat of the moment, but nothing more, and usually a handshake after.
The only violence I've seen was between two kilted scots at the pub around kicking out time near Twickenham - and I think they were probably best mates after a few too many!
When you think of it: 25 years x 5ish tests x 50-80,000 people - that's a lotta potential for the stray dickhead, and yet it's never really happened.
It's the best part of why I love rugby and want my son to play it over any other sport - purely because of the values within those who play it and adore it. If some soccer scout turned up with a multi-million contract for Gagger Jr*, I would honestly prefer he did quite literally ANYTHING else than sign, such is my loathing of the values in that game in the UK (separate from it being a beautiful game to watch if played well).
Quite simply money cannot buy the right values in people, and without those values life is empty and ugly.
So, if there is any truth in any of these reports I find them pretty disturbing, because it is really does fly both in the face of what I've always held to be the core of what sets rugby aside, as well as bucking a quarter of a century of experience so far.
[with his genes I am pretty safe from this one I'll admit]