One of my favorite excuses is "..because I can". Because I can, I've done some crazy stupid stuff over the years.
Here are some that I can remember
In the 80s. I grew a moustache, shaved half of it and kept it like that for most of a work-week. I remember that it was suppposed to be an act of protest about something but, for the life of me, I cant remember anymore whatever it was I was protesting. I was working in a bank at that time. I didn't stay long.
I really have to go back to work now. I still want a cig.