Why are you shouting?
Throughout WW2, Canadians had the reputation as trouble-makers, or as the current vernacular would have it, as 'attitude cases'. They were regularly posted out as soon as their stuffed-up COs could blindside the receiving units. I've known a few vets who will readily acknowledge that they were 'independent spirits' who knew their jobs but needed the right environment in which to do them. This is a fine Canadian tradition. It may or may not apply in your case, but it sounds like he finally found a home where he could excel.