Why it (generally considered) horrendous to crush a cat under your heal, but not a cockroach? Is it acceptable to kill a dog because it is old? if so, only if it is suffering or also if it's a nuisance? Why is it horrible for a person to kill a dog in the city by shooting it, but accepted if it's on a farm? Why do people freak if a child sets a horse or a rabbit on fire, but not if they burn ants with a magnifying glass? What about a lizard? We seem to view killing mammals as more horrible than non-mammals. Why? What about harvesting animals for food and the varying conditions in which they might be kept? Thy are not humans and they are not people, yet some consider them to have more rights than they do some people. What should the laws be and how do you reach your conclusion?