Hi all, I posted on here quite a while back about my friends puppy who has been causing her issues. Quick back story: puppy wasn't planned... He was dumped on my friend by her sister who couldn't cope with him. He was not toilet trained at all and was displaying aggressive behaviour which we hoped was just normal puppy play. Just over a month on from my last post and we have had a little progress with the toilet training. He is holding his toilet for longer and is having less accidents in the house. He is also starting to toilet in the back garden which is progress.... However the aggression has got much much worse and for some reason seems to be aimed solely at my friend. He's quite calm and well behaved with my friends mum but with my friend he is a different dog. Constantly growls and bites. My friend said it feels like he's trying to dominate her but is this normal behaviour in a pup?? (we think he's around 8 months) The biting is getting worse and is drawing blood now. He is also quite aggressive towards my husband and me when we see him but my friend seems to be the target. Clearly we are doing something wrong here?? If anyone can advise? I'm aware we need to get him to classes asap but unfortunately things have been a little bit difficult of late.. My husband and I have been back in Essex as his dad is in hospital so my friend is trying to cope with the pup on her own, she's also a carer for her mum and grandad. Could his behaviour be a dominance thing or is it purely just normal puppy behaviour?? I'm not so sure now? Any advice welcomed!