This was a great animation, something I think that could be worked into perhaps other small scenarios of similar settings. I always found something fascinating about post-apocalyptic games and movies and this one has a very interesting view!
@kirby311: It is clear by the dad's reaction that he has seen this type of creature (be it man or robot or mutant) before and that is why he handed over the water. I think its far more likely this beast is a former human and needs the water for actual sustenance. I think he catches fire because of wearing an exoskeletal suit that brakes rather than being robot...of course most of this is speculation, but certainly the father KNEW this thing was dangerous and it was definitely being aggressive without a doubt