It's hard to say what you'd do in the situation. I've intervened when it looked like drunks are about to belt their girlfriends. Helped drag attackers off a person getting the shit kicked out of them on the ground with a couple of my mates also grabbing the attackers. But I've usually had bottled courage in my system when I've intervened. I don't know if I'm quite as brave sober.
And I recall a guy in Melbourne who got shot for intervening on a guy pushing his girl around. So it's easy to say how brave you will be in these situations. But the body preparing for bravery is reacting in almost exactly the same way as the body preparing for intelligent cowardice.
I like to think if id been there I'd have grabbed some type of weapon from a shop and at least tried to slow him up. But every man there barring the one dude probably would be thinking the same if they hadn't been there and found out something about themselves.
Mate - about 6 years ago I'm in the office at Parramatta. Level is completely secured, you need a pass card to get to our floor and then another to get through the glass doors. We also have the Uni in the building and most of the students fck up at some point and piggy back to our floors. No biggy, you tell them to fck off and they go.
Theres a chick sitting about 10m away from me and next thing some dude who definitely doesn't work there is next to her desk and she's looking nervous. Anyways, I get up, walk over and tell the guy he shouldn't be here and has to leave, noting he's got his hands in his pockets. Sort of said it mid-voice so others on the floor would know. Dude about my size who's army reserve jumps up and walks over, says the same thing. Dude says he's just enjoying the view to the city (yep city views) and we said thats great, but out you go.
We escorted him through the doors into the lifts - I pointed at his hands to my colleague and he got the gist - watch the hands. Sent him to the ground floor (no buttons in the lifts) so he's going there unless someone calls the lift on the way down. Turns out the girl rang the cops the moment we got him moving.
Comes out on the ground floor as apparently 3 cops walk in the other end of the building. He sees them and does the dash. We found out later he was armed with a flip knife, pulled it on the cops when cornered and they tasered the fck out of him. None of this made the news as no one got hurt. We put double glass doors in after that.
Now, I know of an ex KC bouncer and two guys that do krav maga who were closer than me and neither of them moved.
All these wanks judging others for not doing x, y and z. And blaming someone for not putting their life at risk for others is just plain shit. Fair play to you for saying what you think you would do. You never know until you are in that position.