Can confirm, wrt the boundaries portion. I had to have a discussion with the parent with whom I maintain minimal contact, for reasons. They managed to throw in a wild accusation and went absolutely bat guano, demanding I inform a payee of one of her checks that did not show up in the mail that she would be deducting the stop payment fee from the next check. I said I would not, because there is no legal provision for that, and they sent me a screenshot of their bank's stop payment notice suggesting she talk with the payee, circled and highlighted in paint, to inform me, and I copied the text to paste it here:

You’re out of line. Its not my fault they can’t keep up with their mail. Someone has to pay the fees and I’m not paying!