I haven't had it lately, but I used to always have this dream where these people were chasing me (most of my dreams have...running in some form or another in them). They'd never catch me though... But I always had the feeling that I was some sort of... thief who was playfully avoiding the police (I guess this meant I never thought they would catch me).
...It's not really a good dream, but not a bad one either.
I seldom have "good" dreams or "nightmares" usually, my dreams are just plain weird.