If, indeed, you did.
I distinctly remember bopping my sister on the head with a recorder one time. I can still hear the 'donk' noise it made.
Then there was the favourite of repeating everything she said in a whiny voice.
My DH's eldest brother used to keep a fart jar then pin down his younger siblings and hold it over their face.
Any other gems any of you would care to admit to.....?