Thank you for that question right off the top.
I've seen the discussion of my past acquaintanceship with the Prime Minister. I took a two-year Master of Economics program at Oxford University. The Prime Minister was already there. He was in the year previous to mine. As Canadians, we knew each other in the program, but we had different social circles and so on.
I saw him again in a professional capacity when I was chief economist at what was then Industry Canada and he was Governor of the Bank of Canada. I supported a committee at the time of roughly 20 deputy ministers, who would meet on a regular basis to discuss economic matters. During that time, I would discuss agenda questions and topics that the deputies might pose to him in those meetings. I typically dealt with his office rather than the governor himself, so I would say that it was really where our professional paths crossed.
I would also add, just for your comfort, that even though we had positive and professional engagements any time we met, I did not have any contact with him after he left to become Governor of the Bank of England.