John, it's simply a matter of selective breeding. Breed bigger and better rats with bigger, um, milk production. Ween the ratlings off and utilize robotic mini-suction milkers from one of those Eastern countries that does that sort of thing well.

Rats can eat what they've always eaten - garbage.

The horse was once knee high. cows once had bags for only their own.

I say where there's a will there's a way.

Not to mention it worked on the Simpsons show years ago!

yr obdnt srvnt
robo