Once saw a kid at the zoo mesmerized with a chair-sized boulder. Mother kept continually pointing at the lion just a few feet away, beyond some plexiglass: "L

Once saw a kid at the zoo mesmerized with a chair-sized boulder. Mother kept continually pointing at the lion just a few feet away, beyond some plexiglass: "Look, a lion! Look at the lion, Billy!" And the dad said, speaking hypothetically on the kid's behalf, "Yeah, but here's a rock!"