You have heard of 'Extreme Programming' but now I have defined for myself 'Extreme Gardening'. This involves a great deal of speed, effort and ruthlessness and involves cutting, hacking, and digging with a disregard for nettles, brambles and the like. It is also an undefined process where the gardender doesn't actually know for sure where he or she is heading at the onset. Hence the gardener may develop a sudden dislike for certain plant or shrub and a brutal desire for its removal. The object in question was a well established rhubarb plant (nothing that requires that much sugar to be edible can be good for me). Suddenly the desire to eradicate it overcame the gardener. Two hours, 8000 calories, 2 blisters and 3 bags of huge woody tubers later, the plant and its remnants had gone. The newly defined bed lay woody and naked awaiting the more gentle process of extreme planting.
Come to think of it, its not dissimilar to the design process :)