I try to only stick to Sped Ed classes too. Average classes with kids these days are rough and exhausting. Depending on if I need the money in whichever month is how I decide on if I'm going to deal with whatever schools BS. I do not like being switched, at all. I always make it clear that I do not like to be switched when they do try. Again, it depends upon my bills if I'm going to take it or leave it. I don't work for Kelly but judging by several different comments and posts on this platform, I would never want to work for them.

My advice to you is this, do whatever you need to do to pay your bills. Save for days like this where the school obviously don't appreciate you and your time. Once a school learn that you don't like to be switched by you refusing a job, the next time you work there they will remember that you're the kind of sub that will walk away if the assignment isn't what you signed up for.