Scripture tells us to be angry but sin not. Don't let the sun go down on your anger. We are in a human package and we will be upset about things and we will get angry, but learn how to deal with it as quickly as possible and find out why you got angry. Search yourself and don't blame another person for the response that you have. The quicker that you can push it to the side and deal with the person around it then the better off you will be, because anger can cause stress, tension, high blood pressure, and all sorts of things. It is better for us to deal with anger than to be sick from it.