Lee Jeong-bo (1693-1766), an intellectual of Joseon Dynasty (1392-1910), wrote a poem that goes like this: “The guy I was with last night, I will probably never forget. As if he was the son of tiler, he was like kneading clay. As if the son of boatman, he was like rowing. As if the son of mole, he dug up here and there. It was the first and I had funny feelings. I’ve had enough experience, but I swear I will never forget the guy I was with last night.”