wessago

i know this sounds bad and i'm going to get downvoted massively for it but here goes: this shows why, when you're in a foreign country, you should never ever get involved or intervene in situations no matter how strongly you feel or how much you're in the right to help out. there's a very high chance of a misunderstanding of your intentions and the law will almost certainly work against you.
having lived overseas for the better part of 10 years, the people i always see get in trouble are those who rush in to help a situation. see that drunk girl sitting on the corner crying? go over and sit down beside her to comfort her and when her friends come back, they accuse you of touching or molesting her in some way. see that woman with the baby stroller struggling to make it down the steps? go ahead and lift the other end of it to help make it easier for her. watch as she panics and accuses you of trying to kidnap her baby. i have personally seen both of these things happen.
as bad as it is to say, my best advice for ex-pats and tourists alike is not to get involved, no matter what. it may be callous but it will keep your butt out of trouble if you mind your own business. the thing about white knights is that they almost always die the most painful deaths on the battlefield.