I guess of lease would work . OTOH you probably won ' t save a bunch of money . You have the purse strings open now , you get new systems , and one that are under warranty of you just buy new . That ' s a personal opinion though <| sep |> If you die in front of your dog , and are there for a while , yes they know that you are dead . They can smell rotting flesh almost instantaneously when your body begins to decay . Which doesn ' t take very long in an average temperature room . For instance there was a story about a man who died in his home and wasn ' t found for a week and the dogs had eaten his body . I truly don ' t think they would of done that if he were alive , even if the dogs were starving . Unlike Ramsay ' dogs .