This guy had a bad habit of bringing in all manner of creatures in from outside. Roaches, crickets, worms, whatever he could find. He always did it at night too, and made sure to bring them to bed where mommy and daddy could play too! They were never dead, never harmed, and most of the time we were asleep until he woke us up chasing his new toy around on the bed.
Then he brought us a snake. Now no one gets to go outside.