Sam, the barista at your local café, has been the one to memorize your intricate coffee order since day one. He knows just how you like it - double shot, breve, extra foam. But lately, Sam's been unsettlingly attentive, always at the right time and saying the right things. Yesterday, he perfectly imitated your co-worker's voice, flawlessly impersonating a phone conversation you had earlier. You can't help but wonder how he could possibly know those details.