That was my thought but if they could design one with a specific "river-type" water flow, it might not be too bad (okay, it'd be AWFUL), but it's like those hamster things you had as a kid!!! Could you imagine throwing a whole mess of dojos in one of those? Or even a swarm of Khulis? Some botias maybe and some true burrowers... omg it'd be better than tv, reading and especially this damn computer addiction!!
