Alfie has never known stairs, until the new house. She was so scared at first, not sure what would be lurking up or down them, but curious all the same. The first week anytime one of us humans would use the stairs, Alfie would puff up and run away. Now of course she is crazy for them. Trying to bat at us as she sees our heads coming her way, or chasing the other cats up, down, up, down. Good, she needs the workout. And I have to say... the stairs ain't bad for my bum either!