I had the impression that the Canadian banking system was a haven that major players used for demand deposits rather than US institutions in 2008 / 2009. Turns out they had problems rolling it over as well. http://www.huffingtonpost.com/blackberry/p.html?id=1466219
Particularly huge for system that many touted as the world's strongest. Love the Fed or hate them they've got some broad shoulders to carry the entire western world!