"There Was Something In That Cockpit That Consumes Plastic."
The Major says this after finding the pilot's arm bone picked clean. I've thought this was odd from the very first time I saw this film in the 70's. He's more concerned with the plastic than the fact that the pilot was apparently "consumed" as well. Uh, excuse me, sir, doesn't whatever it was eat human flesh too?
"Sheldon, if you say ONE WORD, I swear to God you'll choke to death on my fist!!"