To quite some extent it is wise to not make a decision when you’re angry and to not make a promise when you’re happy. You shouldn’t always allow your emotions to control your actions. When we are angry, are brain has the tendency to think negatively and react negatively. In such a situation, its best for a person to not make any decision. When we are happy, we have a tendecy to only think positively, which is not a wrong thing. But sometimes our happiness doesn’t let us see the consequences of our decisions. So you should always think before making a decision or a promise and not let your emotions take control of you.