Involuntary Lucid Dreaming
Believe it or not, I have these stupid dreams once a month or so and it seems I have no control over it. I will go to bed as usual, start to dream and will at some point decide that my dream is pissing me off and I decide I am not going to put up with the crap anymore (usually I am battling some kind of beastie, but I have other dreams as well).
The really weird dreams that really suck are the ones where I have these "waking dreams" or whatever you call them. I open my eyes, look around and I am perfectly conscience of my surroundings but I can't move anything and I can't actually 'wake up' - I am fully aware that I am asleep and I want to get up but I can't no matter how hard I struggle, or think "alright dammit wake up" I just can't do it, in fact I feel like I have been heavily sedated. Oddly enough that its not scary at all - it just leaves me really tired the next day.