Frustration (and Chinese New Year) engender 'fireworks', but usually, if one can take just a small pause and take stock of what that's doing to one's body, the frustration-anger coupling can be broken.
This allows a more fruitful path to obtaining one's goals.
It allows setting up a win-win rather than (even if it's so as it appears to be in Shaunna's case) an "I'm right/admit you're wrong/do what I want"... which engenders hostility in the other person, and not cooperation in achieving your goal.