Frustration is when you run out of hot dogs at a wiener roast.
Frustration is when you keep getting 99% on an Angry Birds Mighty Eagle level.
Disappointment is when you sell your baseball card collection for half its value.
Disappointment is when you get second place.
Anger is when utility rates increase faster than your salary.
Anger is when school taxes are redirected to private industry.
Each of these words has different levels of emotion. We have some control over, and some responsibility for, frustrating and disappointing events. We are offended when someone overpowers us. Anger follows a feeling of being wronged.