My one brother was like that .. his daughter would screech all the time about her brother .. what my brother never bother to realize was that at the time she was doing this screeching .. she was pulling her brother's hair and hitting him while screaming that he was picking on her
This happened once when my mother was in the car with them and after my brother was yelling at his son to leave his sister alone.
Mom chimed in and said .. You're yelling at the wrong kid. I don't think my brother was to thrilled at that, but my nephew was, finally someone noticed and told the truth of what was really going on
I never forget that story and I wait to see which one of my kids is really causing the problems and then yell at them
As for Mike, a few times he has made comments to me .. I usually TRY to bite my tongue, step back and let him learn the hard way of what I am talking about.