Some phrases for a training exercise?

In a few days time, I will be taking part in a training exercise for Police hostage negotiators, and because I am learning Polish they have asked if I will play the role of a Polish person who is taken hostage. The situation will be, two men have broken into my house (the wrong house) looking for some drug dealers who owe them money, and taken my wife and I hostage. I will be speaking to real Police negotiators through a real Polish translator, so I have to try and sound genuine. I have been learning part-time for a couple of years, so my Polish is nowhere near fluent, but I can hold a simple conversation.

I need to find some phrases that I might need to say, so I sound as real as possible - e.g.
I don't know these men
They won't let me go
I don't know why they are here
Please help
I'm scared
What do you want me to do
etc etc

Can anyone think of anything else I could say? Imagine yourself in the situation - what would you be likely to say?

All help greatly appreciated...

Keith.

I don't know these men = Nie znam tych ludzi, or Nie znam tych facetów
They won't let me go = Nie chcą mnie wypuścić
I don't know why they are here [I don't know why they picked our house]= Nie wiem dlaczego wybrali nasz dom
Please help [us] = Proszę nam pomóc
I'm scared = Boję się
What do you want me to do = Co mam zrobić

I don't know what they want = Nie wiem czego oni chcą or Nie wiem o co im chodzi

Please don't hurt me
Please don't let them hurt me
Don't let them hurt my wife.
I don't care about me... but I'm worried for my wife.
How long will this take.

Please don't hurt me - proszę, nie rób mi krzywdy
Please don't let them hurt me - proszę, nie pozwól im zrobić mi krzywdy
Don't let them hurt my wife. - nie pozwól im skrzywdzić mojej żony
I don't care about me... but I'm worried for my wife. - nie dbam o siebie... ale martwię się o moją żonę.
How long will this take. - jak długo będzie to trwać