made them feel like i have to step in here i identify with the situation, i did step in. that might have motivated the group to do something different. it would depend on the psychological make-up of the constellation of the group. >> does it go without saying if the victim had been a loved one, it's your spouse your child, then everything you've just told me goes out the window game on? >> you are much more -- of course the person. that's the expectation of the group, someone who is related somehow will step in. >> and actually that is true. >> i did this on the radio yesterday, and i pointed out the perpetrator was 5'5", 150. not a big guy. and i'm the first to say, i hope i get involved but i have no idea if i would get involved. i don't think you know until you are confronted with the circumstances. >> people who are writing in and saying things and thinking i think they really believe it. just can't know because of the social psychological phenomenon that just goes against what you think would happen, but has repeatedly been shown in studies