A few years later, I was almost 21, and a couple of friends and I were going to go tubing down the river a few hours away. Somehow, Heather had gotten wind of my plans and thought it sounded like fun. I remember dad convincing me to let them follow us out and tag along. And by convinced, I mean he gave me a couple hundred bucks for gas and 'whatnot' for the trip. I managed to procure a couple cases of 'whatnot' and gave the three of them a six-pack to share. I figured, what the hell, we would be on the river for some four to six hours,...