Just last night, I had one where I was watching an episode of My Little Pony that somehow involves humans (which I exclaim but everyone else watching just shush's me), and apparently Twilight Sparkle gets invited to a dinner with a human family but somehow embaresses herself for not abiding to human table manners.
Then that all turns out to be a dream by a human Twilight Sparkle who's actually on a boat on a jungle river, and she sails past a giant crocodile who swims after her in hot pursuit, and for some reason she gets off the boat and runs on water a'la Jesus or Looney Tunes cartoons.
And then out of nowhere it wasn't Twilight who was running, but Mickey Mouse, and he encounters an expy of a villainous Batman and several henchmen dropping a corpse into the river, but then Mickey bumps into them and suddenly they get tied up in a rope trap, and Mickey accidentally steals an entire bag of gold coins and a diamond.
And then the whole thing shifts to MY point of view, and I open a locker in a High School to leave my newly-possessed treasure; except that I have an extra diamond that turns out to be edible. Locking it inside, the bell rings and some of my college friends come over. I decide to show them what I had, and so I opened my locker. But the stash had inexplicably disappeared, and for some reason the locker turned to a completely different color. Then one friend realizes what happened and said that since I woke up from my dream, the gold and diamonds wouldn't be there anymore.
And then I actually woke up.
Jesus Flipping Christ.