"Well," I assured him, "you have got one guest until they shift you off your asteroid. Me. Free food and housing will suit me fine. And maybe we'll find some very backward part of the Galaxy where they need gold and such. "It's a pity," I added, as we started to walk towards the spaceport, "that you can't control these bacteria of yours." "Can control." "It didn't look like it, my friend." "Oh, yus. Can control bodily leucocytes, corpuscles and such. Perfect cell replacement easy." I looked down at him. "If it's all that easy," I said. "I suppose your old men can run faster than your houses." "No old men," said Lood. "Well, old whatever-you-are's." "No old. Not die. Oh, yus. Perfect cell replacement." I stood very still. "Do you mean you never die?" I asked. "Oh, yus. Never die." "Can teach?" I asked. "Oh, yus. Most simple," smiled Lood. "Can teach all men not die. Not ever." But I was off running after the three Commissioners, yelling until they stopped and stood waiting for me.... End of Project Gutenberg's The Useless Bugbreeders, by James Stamers