This is more of stupidity and not accidental accidents like running into the "open door"
I roller bladed on the roof of my house and jumped off into a pine tree...no injuries except for a scrape from the tree branch
There was also the time where I rode my "BIg Wheel Tricycle" (The hells angels of tricycles

) down the stairs because I just saw home alone (part where he rides his sled down the stairs and out the door) well my big wheel flipped over and i hit my head on the door and knocked myself out.
Finally there was the time when I was 3 and I figured out how to open the child safety locks on the cleaning supply cabinet and i sprayed windex in my face on accident
Except for the first stunt all of those were before age 4