What reasons in your contract are sufficient for immediate termination? Accusatory and/or disrespectful behavior on the part of the daycare parents is in mine. Do you have anything like that?

I honestly would dig deep and do a month on my credit card or something than keep these people. I would rather eat peanut butter sandwiches all month and cut off my cable. I would hold a bottle drive and find some way to make the money back, but I would not let these people back.