Some chuckles and a lot of truth in these replies. I don't do the four or five AM thing as much as I used to, it is usually due to my lack of ability to sleep. After awhile you start noticing the people on the same time cycle as you and talk back and forth to them more. I kind of consider them the early morning gang, in a good way.
As a teenager and young man I had a chow dog, maybe the smartest dog I have ever owned. Five days a week I had to roll out at five AM, weekends I should have been able to sleep late. Naah, the chow had run of my bed. He would get in my face and huff when the alarm didn't go off. If that didn't work a bark or roar from less than six inches away from my face left no doubt I was faking being asleep. All the marvels of intelligence I could tell about this dog, I know damned well he understood weekends, he didn't care!
Hu