While I was walking the dog in Donaldson Park, I saw in the distance a small tree, floating horizontally, levitating five feet above the ground, and then, after an awestruck moment, I realized that it was not completely defying gravity, but instead balanced on a slender slice of trunk . . . upon closer inspection, I could tell that the split was the work of termites, but my main thought was: I've got to get one of my children under this thing and snap a photo before it topples over . . . and while I may have put my son Ian in some degree of mortal danger, it was obviously well worth it.