I was a courier in Calgary in the late 80's. Great gig as I picked up and delivered blueprints for a reproduction company so I didn't have to hustle for commission. Had a spectacular near miss when I hit black ice and went down, rolling into the middle of a busy intersection. Fortunately all the cars stopped as I popped up in an "I'm all right!" kinda move and hopped back on my bike. I also remember looking up at a big outdoor digital thermometer one day and reading -32.