In the lecture "the game theory of ethics" Alan Watts talks about the Element of irreducible Rascality, the British philosopher describes a known facet of every person's character. Carl Jung called it the Shadow, Judaism calls it the Yetzer Hara, in Christianity it's "let him who is without sin cast the first stone" and in common English pop culture it's "nobody is perfect". It's not just because of the wordplay of the element of irreducible rascality that the topic fits the player Dong-Jun "Rascal" Kim but it's very much reflected in his career. 

Reference video for those interested: https://www.youtube.com/watch?v=uI6bPH5H5NI