My old housemate had a bad habit of getting stoned and ordering random cheap shit from China on eBay (and forgetting about it until it arrived 3 weeks later). One day he beckoned me into his room, and showed me the training kit he wanted to get for his cat. The cat was the type that keeps meowing at whoever's nearest at high volume until it gets what it wants (which usually ended up being me), not to mention had specifically come into my room and pissed on stuff while I was sleeping, so I was already severely pissed off with this animal.

I told him in no uncertain terms that training the cat to do its business in the toilet was crossing the line. The possibility of having to wait for the fucking cat to take a dump before I could go doubled with the fact I'd have to flush for the dumb fucker would be the final nail in the coffin of my dignity. I would not become the pet.

I can understand the convenience training a cat to do this, but there are some luxuries that should be the privy of humans, and sitting down to take a steamer without having to dig a hole should be one of them.