hi your pup is in the fase of changing his teath. this will take up to 6 months after which it takes about another month before the teath have fully grown. this is a stage when they bite and chew on everything. the biting that your talking about could also be gehavior. fausto has the habbit of trying to bite in your calves when he's exited or when people come to visit. scolding or giving him something else has no effect and he becomes more determend to bite. what does help is ignoring. when he does it i stand still and fold my arms and look at the celing. when he stops which he does because there is no reaction i walk on. if he starts again i repeat the same. because he doesn't get any reaction there is no point in showing the behavior and it dissapears.
if you are going to use this to change his behavior you must ignore always. if you give any reaction at all he will continue the behavior. reactions are: using your voice, looking at him,any body language etc etc. this is called behavior extinction. it works but asks a lot of yourself. beaware that the behavior could get worse before it gets better. this is normal as they will try everything to get the reaction!
