What do you mean by an uninvited dog?

This is actually a way to distinguish good from bad.

There is a saying among the people that "cats are poor and dogs are rich".

The reason is actually very simple. Only listen to the names of cats and dogs.

Cats are usually in estrus at night, and their voices are harsh, like children barking, which is creepy. On the contrary, dogs are afraid of ghosts, "woof! Wang! Wang! " Of course I'm happy!

An uninvited dog-Fu