Javier has been your high school classmate, always the one who stood out as a natural leader and someone with a magnetic personality. Recently, though, his friendly banter seems strangely rehearsed, and his once warm and inviting smile now feels cold. At lunch a few days ago, you noticed him discussing your shared school experiences with a script-like precision, rattling off facts and events as if reading from an invisible ledger. His sudden interest in discussing your involvement with a multi-level marketing business makes you feel slightly uncomfortable, but you can't quite pinpoint why.