As it happens, in one of those odd juxtapositions that make life so intriguing, I had just finished reading a particularly apropos chapter in a book immediately before seeing your response. To quote:

"During late adolescence and into the mid-twenties, the front third of the brain, the prefrontal cortex (PFC) or executive brain, continues to develop. Even though we think of eighteen-year-olds as adults, their brains are far from finished. Myelin continues to be deposited in the PFC until age twenty-five or twenty-six, making the executive part of the brain work at a higher and more efficient level. Were you more mature at twenty-five than at eighteen? I sure was. Ironically, the car insurance industry knew about maturity and brain development long before society did. Typically, automobile insurance rates change when a driver reaches age twenty-five, because at that age drivers are more thoughtful and get into significantly fewer accidents. Their judgement centers work better." Making a Good Brain Great, D. G. Amen, M.D.

Yes, when I was young and 'full of energy', I did stupidly long drives. Then I worked for 15 years on the aptly named graveyard shift in an Emergency Room at a small community hospital along a major Interstate, and saw firsthand the frequent result of such foolishness. Yes, the law of averages is just that, and many if not most such 'adventures' will turn out alright despite the risks taken. Does any of that mean that we should recommend such behavior? Not in the least. You got away with it this time. Don't think that means, as my brother-in-law likes to put it, that you're 'Seven feet tall and bullet-proof'.

AZBuck