My dad was a project manager for Expo 67 and the 76 Olympics in Montreal. I got free tickets to both. I wasn't terribly impressed with world fair (Expo) as I was only 7 but I loved the 76 Olympics and went down every single day. I even had some friends competing in the diving and swimming events.
Remember when Jean Drapeau said "The Olympics could no sooner lose money than a man can have a baby!" There were a lot of men having babies apparently!!! Your dad must have had some stories on that job....