Anger
In one way or another people or events will provoke you, and force you to want to respond in anger. Try not to take the bait. Focus on controlling your emotions instead, not letting it burst. And do not repress your anger either. Just do not take things personal. Because nothing in the world is worth taking personal, and anger drains your energy.
Focus on changing the dynamics of your anger. Allow the moment to pass, and if you are going to respond, it should be later, when the source of the anger has been put under control, and respond in a dramatic and definitive manner.
Directly showing anger, such as shouting or losing temper, forces you to make exaggerated accusations. And as your temper dissipates, you begin to feel resentment over what you have said. On top of that, you show your weakness and lack of leadership to shape events if made to lose control. You can create doubt and uneasiness among your followers, but can neither intimidate nor inspire loyalty with anger.
Now that you know how self-destructive anger could be, understand that someone could bait you to be angry and unsettle you. The clever ones would first study and know you thoroughly. They would not bait the wrong person to anger, because they know the wrong person is the type that can easily crush them. And they know too that nobody is infallible, that even sharks and lions can be tamed, or even killed. So, they find gaps in your strength, test first, and then attack you. They understand that baiting an opponent one can or cannot match to anger is to force him to lash at one uncontrollably, so one can hasten his defeat.
But you, on the other hand, will maintain your composure. Simply stay indifferent when others are losing their peace. This way you will have time and space to plot actions that will help you take or stay in control, while others get drown in the whirlpool that the opponent created.
Remember: Control your emotions. This is the key to hold your peace while others are going crazy.

