You must stop things which are not going well, but you must certainly not stop when you do things well even it goes wrong for a moment like this clown. He looses one of his rings but he cannot show his irritation from the inside during the act. The show must go on. He keeps on laughing even when he was ashamed and disappointed about his failure. Every person will have such a moment in his life. Sorrow or failure, even it is difficult,never stop laughing!