Ugh. This is a little bit of a vent, followed by a request for your seasoned advice.

I have dealt with many issues over the last 3 1/2 (almost 4) years of being a provider. But I have not, until now, actually had to let someone go. On occasion I have bided my time, because I knew that a family was on their way out. LoL
I have a particular family that has been with me since August, on a part time basis. Literally from day one, it has always been something. In no particular order, we have had payment issues, behavioural issues, toilet training issues, and so on. Once we get one thing straightened out, another comes up. I have been more than clear about my expectations around payment. I need to know what our arrangement is, in advance, and you need to abide by it. YOU cannot tell ME what and when you will be paying. If there is an issue, we need to discuss it.
I have literally had one month in which I did not have to accept altered payment arrangements. And in that month, I was dealing with unruly behaviours from the child. My "last straw" came this weekend. Payment was due on the first, but not given to me on Friday. (pickup time was a little hectic that day, so I forgot to ask in person) I contacted them on Sunday to let them know that I was making my deposit, and needed to have a cheque dropped off. I offered to come by if that was easier. Then, and only then, I was told that payment was going to be a week late. Grrrrrr.
The kicker for me? Mom has some nice new boots, and pretty (recently done) acrylic nails.
I have discussed this over and over with my husband. We both think that this is just the type of family that will always push to see how far they can go. It is clear to me that other payments are more "important" than childcare, and they always will be. Hubby said to me the other day "She has shown you who she is. If you get screwed over by them, it's sort of your fault at this point". That sounds super harsh, but I took his meaning. I have been very understanding, but at the same time clear with what I need from them. I still have not seen that they value that.

*sigh* Thanks, that feels better.

SO: do you tell them WHY you are letting them go? I mean specifically? I honestly don't think it will go over well. I think they will get defensive and angry. And that doesn't bode well for the last 30 days of care that I am assuming will be required.
I have tossed around the idea of using a more general excuse for giving them notice. I am not sure how I would properly express "Your family is a headache for me, and I dread the days your child is here." LoL
What would you do??