I got bratty when I got blamed for stuff I didn't do. Let's face it, I had suffered from more than my share of beatings.
When I was 5, my adoptive brother started hollering from across the street that "mom wanted me home, and that I was in trouble. I picked up a brick. He ducked down behind a car. I threw it, and it bruised his shoulder. At age 12, my adoptive sister tried pulling a similar stunt. So, I beat her with a life vest. My adoptive brother was so bad, he put me in trouble pretty much every day. So, every time I got a beating, I beat him up. He'd tell me " I'm telling mom, and you'll really get it. She administered all my beatings. So, I'd tell him "every time I get a beating, so will you. Got it?".
Or does that qualify as bratty?