Lü Dongbin
The kindness of Lü Dongbin is demonstrated in the Chinese proverb "dog bites Lü Dongbin" ( gǒu yǎo Lǚ Dòngbīn), which means an inability to recognize goodness and repay kindness with vice. Some say that the original proverb should actually be "," stemming from a story about the friendship between the Dog and Lü Dongbin, who both did for the other great favors, each of which seemed like a disservice initially, signifying the importance of having faith in one's friends. This story is not substantiated, because Gou Miao is not mentioned in any classical text, and only popularized on the Internet.