In Isaac Asimov's story "Prank", a group of ten earthlings first arrived on the campus of Arcturus University on Eron. Three second-year students - Arcturian Myron Tubal, vegan Bill Sefana and Denebian Vri Foras - decided to play a prank on the newcomers. They heard that earthlings are distinguished by the fact that over time, in an isolated group, their internal emotions begin to increase, reaching the point of frenzy. At night, all ten of them were taken to the spaceship and transported to Spica-4, where only wild tribes lived, planning to leave them in the wild and see what would come of it. fantlab.ru © Vitaly Karatsupa