"Can't you just ...?"
That's a question I never like to hear, because it assumes that my job is so easy, all I have to do is push a couple of buttons and someone can have what they want. It also assumes that I don't know how to do my job, or that I'm not doing it as well as I could. (That last is quite possibly true, at least some of the time. But even Pete Rose didn't run out every ground ball. Did he?)
The question often means I'm going to have to spend my day doing something I don't really want to do. (No, not "my job." Sheesh.) If I haven't done something that you asked for, I'm sure I have a good reason. If I could "just" do it, I would have already.
And if you'd stop bothering me with questions about whether I can just do it, I'd probably be quicker to get around to it. So there.