padwickinism
It's when you're the calm one in the chaos, but you're the chaos in the calm. You're like a walking disaster waiting for the perfect moment to blow up.
I stayed cool during the math test, but I flipped when the teacher let us go early.
I was chill during the thunderstorm, but I screamed when the lights went out.
I handled the fight like it was a movie, but I lost it when the principal said it was just a prank.