Dr. Mongo explained to the young man that the human scapula was never designed to bear the stresses of actual wings. “That sort of little gotcha is why we advise our patients to only let licensed professionals do their gene mods,” he said. The young man didn’t answer, of course, because another ill-considered retroviral cocktail had sealed his mouth shut. Dr. Mongo shook his head sadly and had his aide collect the co-pay.