In Case Of Emergancy Stand Around Dumbfounded and Useless

I'm really bad at reacting to danger or distress, my mind just sort of shuts down and leaves me just staring into space, obviously I know I should do something because I could help but I never know what to do, it usually just ends up with me going "Are you Okay? Are you Okay? Can, can I get you anything? You sure you're Okay?" Not the most helpful thing in the world. Ah well, someday I'll get the hang of it.

I don't know if anyone else has this, but I have a very active imagination, I mean the gears are always churning away in there with the power on full and steam shooting out everywhere, and I noticed that it actually effects me on the outside. Let me explain shall I?
I was on the way home from school today on the 16, listening to music whilst leaning against the window, and my mind wandered as it usually does and led to me imagining a a dark scene. I imagined I was walking through town late at night, I'm guessing by the cobblestone floor that I was probably in and around Temple Bar, but that's not important, I was by myself, and I remember I looked down an alleyway and I saw two reasonably large men Holding this Girl and covering her mouth with their hands so she couldn't scream, with one more gentleman standing in front of them with the intent to Mug/Kill/Rape her (I don't think my mind ever specified) So I remember I ran down the alley way and tackled the guy to the ground and pinned his arm and told the other guys to let go of her otherwise I'd break his arm, so they let her go and I grabbed hold of her and made my way down the alleyway, but the guy had gotten up, produced a knife, ran and stabbed me in the arm. I remember my face actually wincing as if this had actually happened, and then realized my face was reacting to everything I had imagined prior, it that much of an effect on me, it was kinda spooky. At least my mind didn't conjure the pain of being stabbed in the arm as well, because something similar has happened to me before. So don't doubt your imagination, and don't imagine being stabbed in the arm either.