As a tribute, I'd like to present the one and only time that aliens actually visited Canada (after all, Canadians are much too nice to collaborate with alien conquerors, unlike we scummy Americans!):
Criswell said, PROVE IT DIDN'T HAPPEN!!!
So next time you meet a rich Canadian, remember that they're probably really a Britisher dumped there by aliens!!
From Space Western #42 (1953)