Just last night I had one. It started out with me walking with my mates down a hill, and I was about to do a wall with a red can near a drain and a busy intersection. Then a huge penguin jumped out and started attacking my friend who was fishing in the drain? and I was like what the fuck a penguin, and for a some reason there was a cafe where I was about to the wall, and some old bitch called the cops on me then instantly the cops where coming down the hill, I started to run and then I Alt F4'd (it exits the screen) which is really wierd because how can you do that in real life, then I came to me in my room running around the house to hide all my graff shit. THEN I woke up....
I dont know how I remembered it. But I swear to God, Allah, Buddha and whoever, thats what really happened.