I only know this because my mother told me.
My daughter (4yo) called Grammy on the phone a couple of days ago. Dear daughter said, "I just cannot tolerate my mother anymore."
What, prithee, do you think I did to cause her such distress?
Well, she wanted to talk on the phone to Grammy, and I told her she could call her. Unfortunately, she wanted to carry on the conversation in the middle of the boys' school lesson. And loudly. I told her she needed to go to her room to talk on the telephone.
And that was all. Intolerable.