K Dog said..
This is one of those tough situations.....
I recall the dude who got killed on a main street of Melbourne coming to the assistance of a stripper who was being harassed by her Bikie boyfriend / Handler.....
The guy had a wife and a child. He's dead. Nice thoughts and good intentions.... but he's dead, he's not coming back........
I don't think their is a rule of thumb on what to do, I think you have to assess the situation, first consider your own, and the correct response could be to call the police straight away, or to ask another male for assistance in helping the threat, or whatever seems appropriate... but that is the tough question....
People also need to be smarter too these days, come out of the controlled world and virtual reality they live in and think about what they say to complete strangers without thinking there will be no consequence... recently I heard about a lady who got abused and bashed because she was telling off a youth for defacing a political poster, making moustaches or something.... now seriously... think about you... you don't know who this kid is, what he is capable of... yet people these days are on morality porn, where being right and telling someone off some how protects you in public.... I've also seen it on trams, where some drongo gets on and some older women does the moral porn (cheap pleasure of being "right") and tells him to turn his blearing music down, you could see just by looking at it that the dude wasn't going to respond well.... so he abuses her.... fortunately that was the end of it.... but imagine some father then tells him off for his language... leads to stabs... death.... game over... because the lady didn't read the situation correctly...too caught up in moral porn.....perhaps she could speak at his funeral to discuss how the sum of his life was worth the moment of her feeling right and pulling someone into line lol.
People might disagree... but you need to crunch the numbers, and get outside your head to make the right choices....
It's not moral porn, its the right thing to do. I travel with my 5 year old regularly and after instilling the manners about mass transit to her, am getting sick of having to explain to her why I do not bust their chops (as I do her) about substandard behavior.
Because she is 5, I do not stand up as the last thing that I want to do is put my girl in danger...but when she is not there I am not shy about coming forward.
My list to date:
1. Kicking a flea bag touching up school girls off a very crowded train;
2. People eating on trains and bus. Then leaving their litter behind, including **** like pickles on seats;
3. Vandals (though they generally look behind them before going that ****); and
4. The mobile phone user. I don't mind if the first thing you answer a call with is "I am on the bus/train" and then keep it short, but if you decide to explain to the whole lot of us your problems overcoming that nasty infection you got by ****ing the dreadlocked dude then you can get stuffed;
This **** you attitude about society has limitations, don't sit back and let the little old lady be the victim. Bad behavior is exactly that. Don't leave her hanging.