Last week, I was driving up a one-lane-each-way, winding canyon road. Speed limit was 40. I'm going uphill behind a gravel truck and 2 cars at about 30 mph. Finally, there's a dashed yellow line for passing. Nobody coming as far as the eye can see (which wasn't that far due to a curve up ahead). I start to pass them, and as I'm half way past the truck, I see a truck barreling down the hill coming towards me. I floor it, cut back in lane with a few seconds to spare, and was at 88 mph. With heart racing, I think to myself, "not going to pull one of those again!"