Gang shootouts are places where you're better off running as far away as possible, than interfering and drawing a gun. No gang member will shoot you, a petty bystander, for no reason. Only accidentaly (and guns can't stop other bullets).

My decidion for now is not to carry. Especially not on a bicycle. I won't kill anyone while over reacting in fear. I also won't be able to shoot if someone tries to shoot/stab/beat me to death. But I don't see the latter case likely from the way I live, where I go and what I do. Not really.

Interesting thing: I've played amateur football with some cops. None of them carry off duty. Zero. Makes one think...