Few things are more endearing than the sight of a boy and his dog. That's why the crowd at 7th and Montana flocked to greet Little Alex yesterday as he arrived on the scene with his new Pet Pooch, "Clifford," in tow. Fortunately, Alex doesn't seem too bothered by the fact that Clifford is a one-dimensional, wooden pull-toy. He walks Clifford, talks to him and even pets him as if he were a real, live dog. Next thing you know, Clifford will be shitting Big, Red Splinters ...!