I am to the point where I don't want to go anyplace with my friend and her kids. She has a pattern of ignoring them, then yelling at them. Recently, I watched her little girl (9), stand 2 feet away from her and say, Mom, Mom, Mom, at least 6 times with no response, then my friend yells "What?!" with resultant tears and drama. She doesn't react to behavior or words until things have already escalated into crisis. I feel so uncomfortable that I find myself avoiding her when she's with the kids. I don't remember noticing this until the last year or so. What should I do?