I went to see my sleep doc about ten years ago for a sleep study. It was in the middle of winter and really cold namely -30c or about -25f. The doc was late by about 45 minutes and I gave him heck and he responded by saying nothing(which is how I would have handled it if I was him).
In hindsight I would have handled it differently. I would have said "what is your your problem, did you sleep in?"
