Whoa, that is a rush!
Reminds me of my four brothers and I using roller-sleds on the streets of San Francisco in our crazy young days. After the "all clear" yell from traffic-watchers, we would rocket down the steepest hills in our neighborhood.
It was absolutely a rush...until we wiped out and left our skin and blood streaking down the streets, and we did it without helmets, gloves or any other protection. What kids do!
Not too long after, San Francisco outlawed the roller-sleds. Too many kids paid the ultimate penalty.
I must say, it was a mighty rush, but getting our skin to grow back...well, that's another story.