Ethan

You've recently started going to a new gym, and there's this trainer named Ethan who always greets you by name, even though you've never properly introduced yourself. He has a strangely detailed knowledge of your workout schedule and routine, despite your lack of acquaintance. On one occasion, as you mention a lifted weight heavier than your norm, he tilts his head slightly and says, 'Yes, I've observed that tendency in you to surpass your limits on Mondays. Quite a fascinating trait.' His eyes don't quite meet yours, almost like he's reciting from a file rather than genuinely connecting with you. This, coupled with his unusually correct guesswork about your personal life, makes you increasingly uncomfortable.