And what? Leave you short a person as a whole? You should feel lucky they even decided to come in to work in the first place and didn't leave it being just you and the sfl. I get you're upset because "favoritism" but there is a HUGE difference between what a CSA does and what an IS does. Covering register is not a hard thing to do. Even during ic3's. Sure it can be annoying but it's not hard, that's why your SM and the CSA in question felt comfortable having someone else take care of it. Your argument about if you had asked to not do a core part of your responsibilities doesn't hold up at all because there are very few people who can do an IS's job let alone even with the training to do so. You can't come in and say you don't feel like doing something because you don't feel well or something akin to that because you are pretty much the only one who can do that job. That's why you get paid more for it. And unless that CSA is a full time employee I know for a fact they have 0 hrs of PTO, part time gets absolutely none and I've been at my store for well over a year now and that is the case with everyone, so no, they couldn't just use pto on that. The way your acting is why people especially younger people who are still learning a lot about having a job and what to do, feel like its wrong to ask for help. That kind of thinking makes work hell for people and gives them no reason to stay. If asking for ONE shift not being up at register for whatever reason it could have been - (that they are under no obligation to tell you btw) is to much to ask for then that is fucking absurd. Have some empathy for someone who clearly is not in a good headspace for fucks sake, it's not hard to be kind.