Lightning had struck and every hair on the back of his neck stood up as a cringed smile made it's way on to Frank's face. Somebody knew him, which meant somebody saw him, recognized him, and could identify him, but who was it? Don't let on that you don't recognize them as well as they know you, also don't make it look like you're trying to see how sharp the butter knife they gave you is in case of conflict. "Good morning, its been a while, how are you? Forgive me if I don't get up, go ahead sit down."