Dreams

I had a dream while I was sleeping today:
I was standing outside of one of the fire escapes at work, the one by our current control room, and I saw a truck pull up at the back of the building (in a car park that doesn't exist in reality). I appear to have been expecting it.
One of my real life colleagues gets out with another guard (unknown to me) and escorts a man along the path to our underground car park entrance. It appears that in the dream I am working in a prison (I don't need a shrink to work that one out!).
All of a sudden, from behind me, one of my other real life colleagues (who is very religious) comes rushing along with a knife in his hand intent on killing the man in custody and spouting phrases from the Bible. I have to talk to him to stop him attacking anyone.

It was very realistic and the first dream in ages that I have remembered. I know where all the elements from the dream came from, all things that happened at work yesterday (including a knifeman on a show on the television in the auditorium).