cats

I could present him with multiple options at once, but since he only gets wet food, this would involve a lot of waste.

There's also the added problem of changing taste. Depending on my mood, I prefer different food on different days. Until proven otherwise, I just assume the same for him, which is why I would ideally have everything in stock and he could choose every day.

Maybe I should get more cats, give them multiple options and see who goes for what. Ideally, everything gets eaten and I learn more about their preferences.