Is That A Good Thing?

I'm not sure how I feel about a fear-sensing sandwich. It doesn't seem to have a lot of benefit. I would prefer a hunger-sensing sandwich that would just show up when I was hungry, or even a danger-sensing ninja sandwich that would appear to defend the purchaser at the first sign of an impending attack. By "ninja sandwich" I mean a sandwich that has significant fighting and stealth skills, and not just two ninjas in a sandwich configuration.

Of course, it would still need to be edible...