Have you thrown a hissy fit before?
Perhaps your mother didn't want you to go out? Or maybe you weren't allowed to get a cool toy that you desperately needed and wanted but mostly needed?
There's that emotional Vesuvius in your soul where the world is about to end because you didn't get your way. You're in tunnel vision because all you see if your goal, the importance of your goal, and those who stand in your way. You don't necessarily understand why you've lost those traces of empathy or even reason that you pride yourself in. You simply want to go to the GAP to get that mini-skirt you saw online because there aren't anymore of your size on sale and your sister won't go with you because she's tired and she won't let you use her car unless you top off her gas.
Is it worth it?
Poutingly, no.
So what do you do?
You leave the dinner table angry, hugging your laptop close to your chest. You say a few noncommittally dismissive words to her about going to your room, and you march off.
In your room, you're calm. Where was all of your previous anger? Where was that strictly motivated mindset? Why are you reflecting on your actions which seemed so reasonable before?
Your robot poster wiggles his hand-claw at you in disappointment for handling the situation so badly. You start to feel really, really dumb.
When she opens your door a few minutes later to see if you're upset with her, you simply say no because you realize how foolish you've been. You tell yourself never again.