^Had a dream last night that was its own adventure movie. Lots
  of interesting characters in it. Interesting locations too. One
  scene involved an outdoor conveyer belt about 12 feet above the
  ground carrying contruction refuse - boards with old nails, etc.
  But there was no solid floor on the conveyer belt - you had to
  either sit tight on the debris or if you wanted to move faster,
  you'd have to carefully walk without falling through the pieces.
  It wasn't high enough to kill you but you'd get hurt if you
  fell, or if debris fell down with you, you'd REALLY get hurt.

  I found myself chaperoning (or a part of) a class trip - which
  had interesting characters - one of which was apparently an
  overweight bully who I was trying to rehabilitate. He stopped
  bullying but he unfortunately still had a habit of randomly
  pushing people: not out of anger, just no impulse control. He
  pushed me a few times and i nearly fell to the ground through
  the debris (and I yelled at him each time - finally, I realized
  that that I couldn't help him and kept walking forward through
  the slowly moving forward mess). There were probably about a
  dozen characters on this conveyer belt, all different
  personalities, all different ages, some real life, some
  cartoons. I could write a story about each of them.

  Next scene was an old building, never entirely built, but had
  about 12 stories in it. identical hallways running in spirals
  from the top to the bottom floor. Unfortunately, all the floors
  were plywood - not nailed down. And there were buttons at the
  end of each hallway as you made a turn that would mean certain
  doom - simple electrical switches that looked like they would
  turn on lights but they turned on machinery instead.

  As we shifted to this scene, I was following DOC from BACK TO
  THE FUTURE, who was almost out of sight, always a turn ahead of
  me. Madly chasing after him in fact, around spiral hallways with
  broken plywood sheets for the floor, and a misstep and the sheet
  shifts, you go falling down to the next floor.

  Alas, by this point, I was STILL chaperoning all those dozen or
  so younger folk, but I had to let them trust their own instincts
  and help each other out because it was more important for me to
  catch up to Doc.

  When I finally caught up to Doc, we still had 6 floors to go
  before we hit the bottom floor. He screams, in typical Doc Brown
  fashion, "Do not, I repeat, do NOT press ANY of those buttons
  you see!". So I yelled back to the kids "DON'T PUSH (click) ANY
  BUTTONS!", but I was too late - one had already decided to push
  the wrong one "(click)". The structure started tumbling down and
  we had to rush our way down spiral hallways to the ground floor,
  running even faster than before. As we almost made it to the
  outside, I looked back briefly for a second to see if everybody
  was okay and a cloud of dust surrounded me and Doc and all the
  characters - and I got to see what each of them saw and feel
  what they felt for just a moment - and i woke up, never knowing
  if we all made it to safety.

  Not a nightmare, but an adventure dream.^