From their carnivorous nature, and being rabbits, I would assume breeding them as a quantity defense animal. Sure, 1 may (guessing with this) not be too bad, but if someone breaks into your house and you have 10 mean rabbits, they're going down. Rabbits have a gestation period of a few weeks meaning even with a larger animal you should be able to pop at least a few out a year. Within a couple of weeks you could have an army of rabbits at your command.