As we all know, cats and cat tails belong to two different creatures. As a poor man, I am not worthy of having pets. I discovered this sentence is correct when I was traveling and staying at a friend's house by chance. My friend's cat and its tail are indeed not the same subject.
Ps: As the text says, I am a poor man. All descriptions of cats in the article are based on imagination. Any corrections are welcome.
Intention: a sudden whim