I've dealt with my fair share of head blows. The vast majority have been relatively mild and not really memorable. There have been, however, just a few occasions where I endured a head blow so intense that my vision went to black-and-white and I clung perilously to consciousness. With age and wisdom, I'm now much more careful, thusly experiencing far fewer head blows than in years gone by. I have mixed feelings regarding this. As a tall man, I suspect this may be cyclical in nature, in which case I may be long overdue for one of those soul-jarring head blows. If it does happen, I'll do my best to survive and to persevere, if for no other reason than to inspire fellow severe head blow survivors everywhere.