Fembot Mong-Li is one of the most great ballerinas. One day, after a wonderful show, a billionaire tried to accost Mong-Li. He told Mong-Li that he admires her so much, and she deserves a whole new pair of perfect legs since her original legs were getting aged. If Mong-Li agreed, he could pay for that.
"Replace my legs?" Mong-Li somehow got pissed off. "Sorry, I won't replace my legs with any other ones. You see," Mong-Li detached one of her legs which was receiving maintenance and showed it to the billionaire.
"Look, it got damaged so much time because it served me so hard. If I didn't dance, my legs would be pretty perfectly! I owe a great deal to them. They are my partners and not replaceable at all!"