How about driving home from work at 8 in the morning, smacking your own face just to keep awake? Windows open, car radio at volume "11" [Spinal Tap reference].
There were also the days when we nurses walked into a bar, after getting off work (Not a joke), and had beers, at 8 in the morning, after night shift. We had to process. We were pioneers but didn't realize it at the time. We were caring for AIDS patients in our pulmonary ICU. Then we went next door to Burger King for a healthy breakfast. Then we went home to sleep with the light-blocking shades on our windows.