I've just idly been googling and found an Irish Wolfhound Rescue website. On their page 'Living with an IW', right at the bottom is a paragraph on punishment, this is what it says Never physically chastise your Wolfhound, he will lose confidence in you and never forgive you. A disapproving tone of voice is usually sufficient, but if he has been particularly bad, seize the loose skin each side of his neck, shake it vigorously and shout your displeasure at his behaviour.
WTF? Surely a rescue of all things should NOT be advising to do this!?!