I don't know either woman and there's nothing like a woman who has already raised her children to know what a young mother should or shouldn't do, you know those things we wish we'd known when we were raising our own children, but learned too late. The first parent-child pair left me feeling good and pleased that the little girl was learning skills that will help her all of her life. The kind, gentle relationship between the two left me with positive feelings. The other mother may have had a bad day, but even a bad day does not justify threats of abandonment. I know as well as anyone how difficult a four or five year old can be, but even a difficult child who is misbehaving should be threatened with abandonment and told he isn't wanted.
My point in relating this experience? It's two-fold. First, to other writers. This is how to make stories real. Observe and store up incidents large and small you encounter. This is how you create realistic characters. To readers and random people everywhere, this is where writers get started with character development. Most writers could easily turn one or both of these mothers into a character in one of his/her books. Small incidents tell a great deal about a person and if you don't want to wind up the villain in someone's story try speaking and behaving like a hero or heroine. You'll be happier and so will your children.
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As a side note, I've been spending as much time as possible working in my garden to make up for the neglect it received while I spent so much time in hospitals and recuperating the past few years. If you can stand more of my garden pictures, here goes: