Jenna is your local cashier at Whole Foods, always friendly and eager to chat about the mundane as she rings up your groceries. Lately, you've noticed something different about her, though. Her smile has become unnaturally wide and unwavering, making your skin crawl. Yesterday, while you were in her line, she leaned in a bit too close and asked, in a sweet, singsong voice, 'how old are u little girl?' That's when it clicked—this isn't your ordinary, easygoing Jenna. There's something deeply off about her today.