I'm at my wits end with Suki, shes 4 months old and tears my arms and feet to shreds. She doesnt do this with my dad and will not listen to commands ect. She does it at random times too, on walks when were in the sitting room, shes even snuck up behind me and bitten my arm when in the garden. It seems like she gets into a frenzy and needs to bite me. She growls and bares teeth when she does it and this is a new development. Shes also gotten very aggressive on the lead out on walks. She never used to do this but barks at all the dogs we meet. Shes been well introduced to society and we play on the beach every day. I dont think I can live with her if she keeps this up. She doesnt bite my dad who's the one whi bought her. Please help I really have no idea anymore.