Interesting comments about YYC's Customs/Immigration. I suppose that I don't get any of it because I'm a Canadian citizen (and the last time I went through YYC customs, the agent said exactly zero words to me). I imagine that your home country customs will always treat you the nicest, although I'm looking forward to trying to get a student visa the next time I goto the UK (there's no application in advance, I just need to 'prove' it that I'm studying, and that I'll leave when I'm done).
Then again, my always terrible customs experiences go happen at YYZ with US Agents. Was going for an academic conference, which the agent found difficult to comprehend, and she kept on asking me questions to try and catch me in a lie (which she didn't do). But whatever...
O