TG Gun: Making It Mental

On the way to school, Jon saw Sarah and shot her with the TG gun, but nothing noticeable happened. "It didn't do anything," Karyn said. "Maybe we have to wait and observe her," Jon said. "Or maybe we have to change her *mind*, not her brain," Karyn said. "This device only changes physical things, Karyn. Not mental things." "Well, maybe it should do both," Karyn suggested. Jon sighed. "Okay, fine." He took the stone out and said "I wish this gun also had settings to affect people mentally, like make them think like one sex and be the other, or know how to act feminine or masculine." The stone glowed, granting his wish. "Okay, there. Are you happy?" he asked Karyn. She smiled, then asked for the TG gun. After Jon gave it to her, she aimed it at ...