"You don't leave the kids alone in the backyard unattended -- ever," he said. "But the dog is really the canary in the mine. I figure it'll go for the dog and not the kids."
Here's another take on JPL wildlife, but I thought the characterization of JPLers the most interesting:
The JPL Engineers seem to really love what they do so it's fun to learn about their projects and help them with the best tech toys. Plus, they are so smart - it's like they glow with intelligence. Oh yeah, they love UNIX and OS X so I appreciate this as well.