Truthfully, I do not think I would intervene on a crazed person stabbing someone. I am not trained for it. I would not know what to do.. other than jump on their back. And in a bus, that might not be possible. I would be confused, and not even know what was happening.
If it were one of my children.. yes.. I would give my life to maybe intervene. It would be a willing risk.
Is there ANY record of any woman in the USA intervening in something like this for something other than her own children?? We all like to think we would intervene, but has anybody who is not trained... women especially, really done it?? Why on earth would you/we be any different?