As a small child (indeed my whole life) I have occasionally suffered from what we might call BLIND RAGE.
My elder sister was the most frequent recipient of this.
She still has a scar from where I stabbed her in the face with a pencil.
Or there was that time when she had to call Mam home from work because although I was locked outside the back door I was trying to break in, with a spade, screaming at her.
I taught my younger sister to make a bong when she was 12 and I was 18...
I also taught her some bad words when she was teeny and I was big-enough-to-know-better.
To my shame, I did a fair amount of bullying at (middle) school, I wasn't nice At All.
My own offspring have done some Very Bad Things. No1Son & No1Daughter raced the pram containing No2Daughter down a slope. Pram v apple rolling. Pram won, bounced off the wall and No2Daughter woke screaming, bounced up and about in her pram.
No1Son & No1Daughter decided one afternoon aged about 3 & 4 that firelighters looked tasty. They had a fun night in A&E after that. Around the same time they carried No2Son and left him in a swing for several hours, when I thought he was safely in his cot.