When Fitz sees or hears a roach scuttling, his deeper instincts activate. His purpose is singular, and after much pawing, he disables the roach. He gets miffed that it won't play with him anymore. He glances up at me, suggesting reassemble! Clearly he's Johnny 5 in Short Circuit. When I see a couple upside-down roaches in the morning, I know he had a fun night in the dark.