A junky runs on junk time. When the junk is cut off, the clock runs down and stops. All he can do is hang on and wait for non-junky time to start. A sick junky has no escape from external time, no place to go. He can only wait.
"Junkie: Confessions of an Unredeemed Drug Addict". Book by William S. Burroughs (published under the pseudonym William Lee), 1953.
