 Why did the narrator decide not to mention the Volplas during Guy's broadcast?
Volpla By WYMAN GUIN Illustrated by [Transcriber's Note: This etext was produced from Galaxy Science Fiction May 1956. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] The only kind of gag worth pulling, I always maintained, was a cosmic one—till I learned the Cosmos has a really nasty sense of humor! I unlocked the door, held it against her pushing and slipped out so that, for all her peering, she could see nothing. Volplas at last. Yet I had always been so sure I could create them that I had been calling them volplas for ten years. No, twelve. I had called them volplas since the day old Nijinsky's elongated arms and his cousin's lateral skin folds had given me the idea of a flying mutant. When Nijinsky saw me looking at him, he started a little tarantella about his cage. "Tell your mother that I retaliate. Again in the laboratory, I entered the metabolic accelerator and withdrew the intravenous needles from my first volplas. I carried their limp little forms out to a mattress in the lab, two girls and a boy. The accelerator had forced them almost to adulthood in less than a month. It would be several hours before they would begin to move, to learn to feed and play, perhaps to learn to fly. Meanwhile, it was clear that here was no war of dominant mutations. I flipped a hamburger and a slice of onion onto a plate and picked up the ketchup and said, "I've reached the dangerous age." I dowsed ketchup over the hamburger, threw the onion on and closed it. I thought, "All this and three volplas, too." I wiped the back of my hand across my mouth and said aloud, "Yes, sir, the dangerous age. I kissed her until I heard rollerskates coming across the terrace from one direction and a horse galloping toward the terrace from the other direction. My wife brought me a bowl of salad and I munched the hamburger and watched the boy unsaddle the horse and slap it away to the pasture. I've only had the feeling once before in a small way, but I've always...." Outside this little town, I found a litter of flat stones that had young black-snakes under each slab. I filled a pail with them and took them into town and dumped them on the walk in front of the movie just as Theda Bara's matinee let out.
 He wanted to keep the secret long term and it wouldn't have been worth it to give it away
 Nobody could hear him over the broadcast's high volume  He wanted to make sure Guy had his moment and didn't want to steal the spotlight  He wanted to brag to Guy later, when he showed him the Volplas in the lab afterwards for a more dramatic effect  He wanted to keep the secret long term and it wouldn't have been worth it to give it away