I suppose I've only got 2 cases where I could've been seriously injured.
First was I was playing on my push-scooter outside the local Co-OP, while my mum was inside shopping. The area outside was a pedestrian area, with concrete bollards to stop any cars cutting across (as there were roads on either side of the area).
While I was playing there with my brother however, someone on a motorbike attempted to cross the area at speed, cutting across the corner blind and having weaved through the bollards. He came to stop just a few inches behind me.
And then on a more minor occasion, at a different location, but with the same scooter, I went down an incredibly steep road and fell off, sliding down it on my stomach. I badly grazed the whole of my chest and belly, and was red raw.
Lucky I didn't actually do more damage, or that there weren't cars at the bottom.
And to be honest, had I even stayed on the scooter, I'd still have probably crashed right into the brick wall at the bottom.