"As an observer, when should I feel comfortable interjecting? " When someones health, life or well being is on the line. I have seen too many women starting /

"As an observer, when should I feel comfortable interjecting? " When someones health, life or well being is on the line. I have seen too many women starting / acting scenes just to make some white knight to intervene. There was research where in public woman was being assaulted/abused by man and everyone intervened. Then they switched it around - NOONE CARED. Besides, feminism was claiming how strong and able to defend themselves women are. So by interjecting you are being SEXIST.