INTP and INTJ are wandering around making tea and scooping ice cream in their intermission between the two discs of the Two Towers. INTP has been repeating a line of dubious accuracy from Macbeth all day, ranging from "all full of snakes is my mind," to "all full of spiders is my mind," in a dramatic tone. Finally they scream, "IT'S "ALL FULL OF SHADOWS IS MY MIND!" THAT'S WHAT IT IS!"  

INTJ comments, "yeah, I figured it wasn't snakes or spiders."

INTP repeats "all full of shadows is my mind," about ten more times.

 INTJ finally interjects: "all full of sticks is my arse!"