Is NOBODY wrong in the post ? POST : I know it sounds like a super mundane situation to have but it's something that eats at me.  

Over a month ago I started a new job that had set hours and set days off.  Rarely do these set hours happen but the days happen for the most part.  Yesterday a coworker called in, I came in early.  Another coworker has called in tomorrow and I've been asked to work a whole shift on what would have been my day off.  My 2 days off are suboptimal, kinda leaving me 1 day to get actual appts.  done or see people, since one of those days, everything is closed.  Also note these are not always 8 hour shifts, most weeks I work 48+.

In my reluctance to go into work, I made the excuse of getting work done on my vehicle ( which I will be doing since it's way past time to) but I feel like absolute garbage not going in.  

In a sense, I'm looking for validation in my reluctance, since I feel like they may abuse using my days off instead of just extending the hours of someone that is already at work. At my previous job coworkers didn't help out other coworkers, it always came back to bite you.  

Am I the asshole?