Honestly I would tell mom that the extended time is not working anymore. There would be no way I would work longer especially for 1 child. You wont have to terminate because mom will likely find a new daycare or follow your new hours. There would be no way I would stand for that behaviour! If mom isn't taking the hint, takeover, be firm and dress her child for her. I actually had to put a child in timeout the other day when mom was picking up and letting bad behaviour happen. She took the hint and has begun to just get her child and go instead of letting him run around and misbehave.