Many years ago, when I were but a lad enthusiastically putting together any aircraft model I could lay my hands on, I'd lose bits and pieces of my fingers to the knife all the time -- chopping chunks off myself with almost gay abandon. This never bothered me in the slightest.
Then, one day, the knife rolled off the table and I awkwardly tried to catch it and the point pierced the very centre of my palm. It didn't go in very deeply -- only a mm or two at the most -- nor did it hurt a great deal. However, by the next morning my entire hand had swelled to almost double its normal size.
It was easily fixed with a trip to the doctor and a tetanus shot, but I've always thought it strange that it was the tiny, insignificant wound that ended up with the worst result, while the repeated hack jobs I did on my fingers never had any lasting effect.
Bruce Melbourne, Australia