Kim Yushin
Kim Yu-Shin spend the night at a courtesan's tavern, when his mother learned of this, she cried and asked Kim Yu-Shin to never set his foot in that kind of place again. One night, Kim Yushin was very drunk, and his horse took him to the courtesan's house. When Kim Yu-Shin woke up, he was so angry thinking that he broke his promise to his mother and slit the horse's throat.