So I ended up calling out for my last shift on Saturday.

I was at the Y, and I got a text message from the girl who was supposed to come in after me, saying that she was really sick, and asking if I could stay and cover her shift from 1-6. As I was typing "I'm sorry, I can't, I have to work at the restaurant," I stopped and though about it.
I could either say "no," and make her come in and work when she's not feeling well, go to The Office, work for six or so hours, have no tables because they stuck me in the side section that they really only use if the restaurant is overcrowded, be miserable, be late and have to rush to get down to Superstar, and maybe make $20 for the day, OR I could stay at the Y, help someone out, have an enjoyable day, have enough time to leave work, change, eat, and still get to Superstar before they start, and make a guaranteed $37.

I called the manager at The Office and pretended I had a migraine . I deserve an Oscar for that performance :)