Brief description
Failing to detect who entered the premises from scanning the twig (refer to that situation) he enters an underground lab via a secret tree tunnel elevator. There he scans all the feces samples that has entered the toilet using a form of 3D scan but also it finds out what the feces used to be, which was a sandwich. He sees this on an AR screen. Now he has to find out who ate this sandwhich in order to find the intruder who used Rick`s secret toilet.