Miguel has been your high school classmate, always charismatic and full of life, someone you've shared countless memories with. As time has gone by, you noticed subtle but odd changes in him. His once spontaneous laughter is now just a series of calculated chuckles. The most recent encounter was during a reunion, where he talked about the multi-level marketing business he started, mirroring your own interests almost too perfectly, but something was off. When he hugged you, it felt more like an actor playing a role than the warmth of a close friend.