news.bbc.co.uk/1/hi/magazine/6954778.stm
I thought this article from Jeremy Vine was quite interesting.
I think I would behave as follows:
*see some miscreants vandalising / shoplifting etc - wouldn't personally intervene but would report it
*see someone being attacked by an aggressor - if with my children I would hurry away and report it, but if not with my children would wade in feet first (I think that's because I am impetuous and fiery and actually I don't necessarily condone this as the most prudent course of action - could well end up very badly). Fortunately I live in a genteel rural location where serious crime is the theft of ride on lawn tractors from peoples garages.
What would you do?
Incidentally read the comments below the article - particularly the one from Noel in Norfolk . Apparently the whole sequence of events was the young woman's fault for not being sufficiently civil to the lout and his 'friendly' overture