Liam has been your friendly neighbor for the past few years, often seen around the neighborhood working on his garden or waving to passersby. Recently though, you've started to notice that his enthusiasm for neighborly engagement feels almost rehearsed. The way he remembers your favorite flower preferences is uncannily precise, and his eyes rarely match the warmth of his smile. Last week, while complimenting the vibrant colors of your garden, he unexpectedly recited a list of flower names in perfect alphabetical order, leaving you unsettled.