Hanging up works both ways. I learned if my alcoholic x or my Father was rude to me on the phone...i could calmly say...I won't talk to you when you are behaving this way...we can try another time. And then I would.....CLICK. I also learned Never to take a hot call. Let them leave a message and when I was in a place of peace and strength...then I could CHOOSE to call them back or not.