"“I need you to get off of work an hour early on Friday! Babysitter is watching the kids and she has to leave for her other job an hour early”"
Next time just tell her that you're going to have to see if you can do that. When she says "I need you..." It is demanding. She needs to 'ask' you not demand.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.