Actually, attending Chen Da's classes was somewhat interesting too, because you could watch other people's performances of liberating their innate nature, especially the dormitory brothers' acts. Others could basically talk about those skits for a year...
Yang Runrun was asked to play a shoeshine boy polishing a girl's shoes, but the girl was so pretty that the shy kid hemmed and hawed for a long time without the courage to approach her within a meter. In the end, it was the girl who moved closer, which left Chen Da very dissatisfied.