You know how old people lose all shame about eating, and it makes you puke to watch them? Old junkies are the same about junk. They gibber and squeal at the sight of it. The spit hangs off their chin, and their stomach rumbles and all their guts grind in peristalsis while they cook up, dissolving the body's decent skin, you expect any moment a great blob of protoplasm will flop out and surround the junk. Really disgust you to see it.
"Well, my boys will be like that one day," I thought philosophically. "Isn't life peculiar?"