Regardless of the number, it does happen. Francis even told you that he has seen it.
The fact that you refute everything that is posted is legend and of no consequence in the scheme of things. What I wrote is fact and you can deny all you want. That does not change the fact.
If you don't believe it. Too bad. Again, the fact that you challenge this does not change anything.
I don't think Setanta disputed it "happening", rather his argument appeared to be with the number or fraction doing so, and, in the end, the real significance of it. That Americans are the subject of some distemper among some Europeans, doesn't make them necessarily worthy of it. That some masquerade as Canadians may as likely be a device to make themselves appear inoccuous and unimportant as it may also reflect an admiration for Canada. There are many real demonstrations of things admirable in Canada: this isn't one of them.
I travel a lot and have never masqueraded as a Canadian (I haven't even used my Irish passport) . Moreover, apart from the occasional surly bureaucrat or shopkeeper, I have never encountered real hostility. A smile, a bit of consideration and a greeting work fairly well everywhere - even in Canada. (nothing works with surly Calgary Taxi drivers though).