As far as I can tell, people don't get diseases from cats, but people *do* get diseases from rodents... eek! Maybe they could find lizards to eat the mice?
""" SKINNER: Well, I was wrong. The lizards are a godsend. LISA: But isn't that a bit short-sighted? What happens when we're overrun by lizards? SKINNER: No problem. We simply unleash wave after wave of Chinese needle snakes. They'll wipe out the lizards. LISA: But aren't the snakes even worse? SKINNER: Yes, but we're prepared for that. We've lined up a fabulous type of gorilla that thrives on snake meat. LISA: But then we're stuck with gorillas! SKINNER: No, that's the beautiful part. When wintertime rolls around, the gorillas simply freeze to death. """
"""
SKINNER: Well, I was wrong. The lizards are a godsend.
LISA: But isn't that a bit short-sighted? What happens when we're overrun by lizards?
SKINNER: No problem. We simply unleash wave after wave of Chinese needle snakes. They'll wipe out the lizards.
LISA: But aren't the snakes even worse?
SKINNER: Yes, but we're prepared for that. We've lined up a fabulous type of gorilla that thrives on snake meat.
LISA: But then we're stuck with gorillas!
SKINNER: No, that's the beautiful part. When wintertime rolls around, the gorillas simply freeze to death.
"""