I've often wondering why they don't have cats in prisons. I mean, they have many dog training programs in prisons, why not have some cats in there too. True, they are exactly socializing them to find good homes or teaching them to become "service cats" (the thought alone makes me chuckle), but cats could serve a very useful role in de-mousing the place.

There is no better and more environmentally friendly way of dealing with a rodent problem that with cats.