Group Interview

I have a group interview (whatever that means) at GrubHub Thursday. The only concern is they want someone to work til 1 or 2 in the morning and weekends and holidays. I'm not sure about the safety of working so late. I need to think about that. I told her I'm interested, which is how I got the second interview, but I still have doubts. Should I not have said I'm interested? No...I need a job. But crap, I just remembered I'm supposed to sit for Noah and Zoe on Thursday. Hmm. I need to do some thinking and planning.