Long story short, my boss blew off the time I was going to be able to leave work 3 times. Kept saying I can't do it because I have school. I ended up staying an extra hour after being given 2 different changes and I'm pissed. I don't want to go back, but I have 20 hours of paid sick time. I plan to call and say I have food poisoning to get this week off, then just ghost them. How do I do this?