I think sometimes we get so strapped for cash that we keep allowing this ridiculousness because we're afraid the client may leave.

I'll be honest... I would have sent them home day 2 since they didn't bring any pull ups. My house, my rules. Go home and get them or no care. You can not have pee all over your floor.

This does sound like a good fit for you. I hope you replace quickly and don't feel so stuck with this one.