Try this: I get angry too sometimes. Let's try our warrior cry to get those angry feelings in check.
A recent study reveals that yelling when we are physically hurt can actually interrupt pain messages being sent to the brain. Although your child may not be in pain per se, a warrior cry can work to release angry energy in a playful manner. Choose a warrior cry or mantra together with your child (think of William Wallace from the movie Brave Heart screaming "Freeeeeeeeeeeeeeeeedom!").