My last Sunday class

Good bye long Sunday hours... Except, since I'm waiting for my visa and don't know when it may come (well I have an idea it should be within 2 weeks now), and done officially with my job, I was asked to sub for a teacher who will be out for 2 weeks.  How can I say no to extra money?  Not easily, so I said yes, at least for this week, Monday through Thursday.