So this happened many years ago and i dont remember the grade i was.
Me and my big brother and his friends were doing some ”extreme stunts” at the school yard and they got this awesome idea that someone rides a bike and i was on a skateboard hanging on the bike. we started from a downfall and the speed was pretty high and then i reeld of the skateboard and fell on my back and the helmet went to three pieces and i got a slight concussion. that wasnt good memory:D
Moral of the story: ALWAYS USE THE HELMET.