Whether you work in an office cubicle or wait tables at a diner, there are some things that we all have done at one time or another that makes us look unprofessional.
Not all of us thrive at 4:50 in the morning, like I know my father does (my poor mother!). I do better at, say, 8:30 or 9. We are not all wired to be productive members of society at unholy hours of the day.