Ride alongside a small piece of dark chocolate through a wheezy roof rat with two robotic companions: K-9 (the alarmist doctor-dog) and R-9 (the correcting rat). Learn why a treat that hurts a dog actually helps a rat. Hint… the dose is the whole story, and one number everybody quotes turns out not to be the rat’s at all. Walter eats the forbidden treat → ← All Roof Rat Adventures