I had my interview, over the phone, with York University. I was asked why, given my background and ability initiate and complete projects on my own, would I want to come to grad school? I pondered this for a second and said that I was interested in teaching. This satisfied them. I was accepted in some time later and moved to Toronto in September.
The interview was on my birthday and was on the phone but to remind myself to be respectful, I wore a tie.