人贱不如狗乖
[rén jiàn bù rú gŏu guāi]
In a humorous and sarcastic tone, this idiom compares man to dog, it literally means people have worse quality than dogs, indicating a person is morally depraved. In most context it refers to people who betray others trust, take advantage, lie etc. The owner probably likes pets very much. He/She may also use this ID to ridicule himself or others who lack morals sometimes.