I think part of the problem though, gals (correct me if I am wrong Sam) is that feeding that child is not the only issue. When he arrives at one, he arrives right at naptime. And because Dad is being lackadaisical with the schedule, he slept from 11 to 12:30.
So: A) he's not tired and B) even if he was, there are not too many kids that will come in the door and go straight to sleep.
I stand by what I said. Give them a final warning. "If you are not here by x oclock, I will not be able to provide care."
My concern is that if this continues, it won't be long before there are other issues. Payment, not bringing the appropriate clothing or enough diapers, etc. Ugh...