Hurting other people due to anger over something else.

from Love, Stargirl by Jerry Spinelli fiction ~1 min read

"I think she's angry."

Her eyes rode up to mine. "What's she angry at? The boy?"

"I don't know," I said. "Maybe the boy. Maybe something else. Maybe she's just having growing pains."

"Growing pains? What's that?"

"It's when a little kid is becoming a big kid. Sometimes it hurts."

"Will I have growing pains?"

"Maybe just a teeny one."

"Am I going to beat up a boy?"

I lifted her down to the sidewalk. We headed for home. "I certainly hope not," I said.

—Jerry Spinelli, Love, Stargirl, p. -1