So should we start a tally of everyone who learned about not using the front brake on a bike while going down a hill the hard way?
I have done something like that with a motorized scooter, with my younger sisters on board as well. Except we were moving at full speed down a sidewalk mini-hill, and trying to turn with such small wheels at such a speed will result in a nasty crash. My sister had the wind knocked out of her and sprained her hand, I think; whereas I came out with the tops of my feet and the palms of my hands, along with the side of my chest scuffed. Did I forget to mention I had work the following day? I had to power through a weekend of work with those injuries on me, and I regularly handled dishes and such with spices, oily butter shots and such in them. As much as my co-workers were suggesting I stay home, I was the only other person assigned to work for the time being. I powered through anyhow.
An early bike crash I had long ago was basically going on a ride with my siblings around the park area, and we were showing off a few tricks. Then I come up with the bright idea of going no-hands and no-feet while moving slowly (physics is a cruel bitch). Cue my landing sideways on the pavement with the bike landing on top of me in less than 5 seconds. How I didn't break any bones then surprises me. only minor bruising and minimal scuffing. At the time, it still hurt like hell; but I was still a bit of a softie back then as well.
And one last moment; when rollerblading alone for a few blocks, I decided, one time, to go down this one condo's hilly driveway. At it turns out, this hill is actually double-tiered (one big hill, a short flat area for cars to turn towards the parking lot beneath the frontside and under the building, and a small hill to the main path connecting to the main road). I decide to climb up this and roll my way down. I almost made it, had I not A) kept my center of gravity too high, B) not known how to absorb the shock when the flat area came, and C) gone the path with a crack in the line of movement and taking the inside track while at it (tight turn). I was rather badly bruised and scuffed after that. I didn't realize how badly I was damaged since I had a huge adrenaline rush that kept me conscious as I rolled a few blocks home; and passed out for a minute or 2 once my wounds were being treated.
Now that I think of it, way back when (like Kindergarten and the rest of Elementary school) I was really easy to hurt (and probably prime real-estate for malicious bullying). Nowadays, I can take a beating and almost not be phased by it. I think I ought to invest in a bartender uniform and some sunglasses or something. All that's missing is being able to throw cars and such.