Ooooofff! Some of these bring back memories. I took on physics back in 2014. Walking out of the house shortly after parking the Saab I saw it slip its moorings as the brakes cooed down. The car was parked 5ft from the wall and was rolling slowly (to start with!) towards it. No problem I thought and put my shoulder in to stop it!!! Now, 15m of level road and nothing behind, you might have half a chance. But 5ft and the incline resulted in 500kg+ of force!!
The photo of the Saab and the wall shows the space my wrist / arm was left with! You can see the wheelie bin that possibly saved my arm and maybe my life. The small wheel on the bin was directly in line with the rear offside wheel of the car. It stopped the car dead - 1 inch from hitting the wall and dragging me with it!!
My wrist was broken in 6 places - lots of the bones on the wrist / hand. My memory is that horrid noise that a car hitting something makes, slowed down by the shock and the noise of crunching bones. I have about 80% movement of the wrist now and stiff joint on cold mornings! Luckily the first hand surgeon got me in front of a really amazing surgeon - this meant the wrist didn't have to be fused... he was amazed that I didn't smash all the bones in my arm!
So the wheelie bin saving the day and the surgeon's skills make me realise how it was the luckiest day of my life. Had I died I would have won a Darwin award, surely!!!?