So, I gave the dad the letter at pick up, but also told him face to face. About 30 minutes after he left I got a phone call from his wife, saying that she will leave work early during the week to be here by 5:30 and make up the hours on the weekend. She was pretty much rushing to get the words out and sounded very eager on the phone to have me accept her new commitment. I decided to give them the benefit of the doubt, and said that it would work for me, but I would not work any later than 5:30pm. We'll see how this goes...

Thanks to you all for your input. I appreciate it.