I think some people need to calm down here a bit.
Firstly yes respect the anthem, I will stand (remove my hat if I have one on) for anyone's Anthem regardless whos it is. But in my opinion this was a simple mistake, we all make them, a lapse in judgement (or a brain fart) where you do something stupid or silly and your like "oh boy cant believe I have done that".
Walser is a very respectful person, listen to him speak, listen to him being interviewed. He is a very honest and frank person.
This wasn't pre-meditated, this wasn't an act of disrespect towards Wales, this was a guy under a lot of pressure this time of the season, who was just off a double header in Sheffield, and probably hasn't had much rest or down time since, and made a mistake and lapse of judgement. He has posted an apology on twitter, it takes a big man to own up to a mistake and apologies for it, often enough people would just put their heads in the sand till it blows over.
So yes perhaps calm down, no ones perfect and we all make mistakes.
Anyway second leg of the CC coming up and its all to play for! Hope to see a few Devils fans in the Odyssey and safe travels over.