It's not really a problem yet I guess. It's just that one of my coworkers has recently informed me of a change in her schedule. Because of her new class schedule, she wants me to work her Monday and Wednesday morning shifts and she'll take my normal Tuesday and Thursday ones. The thing is, I'm so used to working on Tuesday and Thursday mornings. The current schedule works really well for me for a number of reasons, the main one of which is that it allows me to get enough sleep which is a big issue for me because of my depression and anxiety. If I don't get enough sleep, those problems get much worse, to the point where I'm crying all the time and can't really function. My boss knows about my issues and awesome lady that she is, has worked my schedule to the way it is now so that it works very well for me. I really don't want to change it. There's also the issue that the coworker in question is not exactly the nicest person. She's bossy (even though we're the same level job), she's snarky and mean in underhanded ways and the way she talks just seems like she wants you to feel less and I just don't like it. She's never done a nice thing for me, never taken a shift when I needed her to. I just don't feel inclined to help her out with this because of the way she is. But then I'm also afraid to say no because she said that our boss said that our other coworker and I 'said we were flexible' and I don't want to jeopardize my job. I don't want my boss to think I'm not helpful or something. I love this job and I need it. I can't lose it.

[edit] Not going to be a problem anymore. I think she realized she was being unreasonable and she 'rearranged her classes' so she could continue working. eyeroll

Go to your boss and explain the situation. You are not entitled to the other person. You don't owe her anything.

I agree with Far, tell your boss this won't work for you and you don't want to switch with her. It's noy YOUR fault she has class

I agree with the others, Dear. Your boss made your current schedule for you because she took your depression and anxiety into consideration. This works for you. If you alter your schedule to help this rude, bossy and underhanded coworker of yours, then not only will YOU suffer, but also your work, if you don't have enough sleep. Now, does that sound fair? I'm pretty sure your boss won't be the least bit pleased if your work suffers.

I have had people at my own job ask me to switch shifts with them. If I can do it, then I say yes. However, if taking their shift proves to be more trouble that it is worth for me, I say no. My coworkers understand and look for another coworker to ask. It is that simple, Dear.

Now, you said that this coworker of yours said that your boss said that you and another person were "flexible". Are you sure she said this? It could simply be something the mean coworker is assuming, as it would help HER out.

Let that mean coworker of yours find someone else to switch shifts with. If you take her shifts, and something happens where you will need HER help, I'm sure her excuse will be "I have class", whether she does or not.

I agree with the others as well. You don't owe your coworker anything. It's not your problem that she has class to go to that messes up your schedule. You're boss won't penalize you for that. If your boss understands that condition your in, and if the days your working works for you, that's fine. They'll just have to find someone else for her shifts. Her job is the one probably on the line.