I was a trucker. A few years back I was drivin up a icy hill in the middle of winter when another semi coming down the hill started to jackknife. His trailer swung out sideways blocking the entire road and headed straight towards me!! The whole time all i could think of was this is it. Thank god no one was hurt. Must have angels on my side or something. We all walked away and I learned a lesson to never under estimate mother nature when your drivin.