The day you have to create a 'reward system' to get you motivated to work.
The day you have to bribe yourself with candy/sugar to do -something- in the next 8 hours.
The day you can't be motivated by the simple fact that its your job and you get paid to do it.
The day nothing on your "to-do" list gets done, that usually comes by Tues or Wed.
The day you feel hung over even though you don't drink, avoiding the lights, the ringing phone, the loud voices, the social contact with others.
The day you feel like a sloth, and sometimes the day whizzes by you other times its just as slow as you are but you feel its even slower than that.
I hate Mondays. Nothing gets done in the mornings. Nothing gets done on Mondays.