my 8 week old pup was outside and a loud thunder clap happened and he immediately ran inside. BUT inside i can yell really loud while standing behind him and he acts like he didnt hear anything. i can squeak his toy and it doesnt get his attention. are 8 week old pups suppose to at least look if you yell towards them? my last pup responded to everything and if i walked past would immediately look up. does he just have good temperment and loud noises dont bother him or is he partially deaf? im probably just being stupid and worrying for no reason?