When somebody provokes your anger, the only reason you get angry is because you’re holding on to how you think something is supposed to be. You’re denying how it is. Then you see it’s the expectations of your own mind that are creating your own hell. When you get frustrated because something isn’t the way you thought it would be, examine the way you thought, not just the thing that frustrates you. You’ll see that a lot of your emotional suffering is created by your models of how you think the universe should be and your inability to allow it to be as it is.