I think one of the most adrenaline inducing situations I've ever been in was the time we had to roll start my dads old Chevy truck. 

My parents house sets on top of a hill, located right off of a main two lane highway. At the bottom of the driveway, across the road is a guardrail to keep you from going in a huge ditch. Well, dad had parked the truck on the up most side of the driveway that night, because it was calling for snow. I don't remember why we left the next day, but we did. Dad shifted the truck into neutral, and began to turn it over. Needless to say, the snow was hella mushy and we slid down the hill more than we rolled. We nearly hit the guard rail, but the truck turned on at just the last minute.