Makes no sense...yet

In the short story Hunters in the Snow, many events occur in the plot that do not seem to make sense with events that occured earlier in the story. There are many examples of this. For instance, when Kenny shoots the dog, he seems to just do it out of impulse. Before he kills the dog, he expresses how he hates it just as he said he hated the wooden post. But in fact, he shot the dog because the owner had asked him to. After finding this out and going back and re reading the dog shooting scene, it still did not appear as if he was planning on shooting it. He never told his friends about it, which was strange, and makes me begin to question the true relationship between the three. Another part that does not makes sense is when the friends seem all worried that Tub had shot Kenny. But in the final sentence of the story, we figure out that they meant to take the wrong turn to the hospital almost the whole time. They seemed sincere in caring for their friend, but not at the end. It is almost inhumane how they act at the end. So the plot doesn't seem to make sense with what happens later in the story and I'm not sure whether or not this is supposed to represent something....in which I'm sure that it is.