Related:

• A chasm, evidently produced by an ancient river, runs through the cave here.
  Passages lead off in all directions....
• A mysterious recorded voice groans into life and announce
  "This exit is closed. Please leave via main office....
• A blood curdling scream echos through the cave, yet it somehow feels much much safer and cleaner.
• Cave(wo)men all belong to the same club.
• We all do. The cave is deep in our memories.
• Are you trying to get into the cave?
• I guess of all my uncles, I liked Uncle Cave Man the best.
  We called him Uncle Cave Man because he lived in a cave and because sometimes he'd eat one of us....
• Homer: Oh, wow! I can't believe my very first passenger is comedy legend Mel Brooks!
  I _love_ that movie "Young Frankenstein"... scared the hell out of me....