We had the most wonderful Manx growing up. Those powerful legs can be a handful and he was quite the fighter but so dang sweet. And what a hunter too, we only had one other (A petite siamese female) that brought home more kills. I told my husband my friend has the Littermaid that self cleans and likes it but he isn't budging. Trust me we have been married 6 years, I am fighting a losing battle on the cat. Oh and Zen- I have never lived with septic, we always flushed down the commode.