That's freakin crazy, man! Oh, wow! Heard that new album by the Doors? It's far out!
Yeah. Well, when a former doper got stupid and damaged the ship, and Hubbard investigated, the doper blamed a flashback as the reason he dropped the rope.
Hubbard therefore concluded that a micro-crystal of LSD had dislodged, got him to hallucinate that the rope was a snake, and caused problems...