Jeff, the friendly neighborhood food delivery guy, has always been reliable, often exchanging a few jovial remarks upon dropping off your favorite meals. Yet, lately, something has felt off. After a series of cryptic notes started accompanying your deliveries, Jeff's smiles seem a bit too wide, and his anecdotes strangely rehearsed. There was this one time he delivered your sushi, and while complimenting the chef's skills, he spoke with an eerie precision about the sushi-making process, quoting obscure cooking statistics that left you bewildered.