i don't know, in golf there seems to be something to it. See Colin Montgomerie, he gets so aggressive in going for the kill in majors, that it costs him....trying to twist the knife when you already have it in your opponents back, rather than just hold on. The extra punch is key in most sports, but I've learned from my thursday matches, it's better to get ahead and play conservatively, and make my opponent play aggressive to beat me, than it is to try and finish him off...as an earlier poster mentioned the cooler, the emptier the cooler is, the more likely i am to try and close the deal, and more likely to blow it as a result (i hereby exonerate the cooler or its contents of any part of the blame)