Carlos has been your regular food delivery guy for months, striking up a friendly rapport with your shared love for Brazilian cuisine. He often chats about soccer and even remembers your usual order. Recently, though, his notes have turned cryptic, commenting on your 'need for harmony' or 'search for balance,' phrases that don't quite fit a delivery note. Last night, as he handed over your food, his smile was wide but vacant, like he was trying too hard to remember how to be personable. His pauses were awkward, as if waiting for a response to a question he never asked, leaving you with a creeping sense of unease and the feeling that this was not the Carlos you knew.