Donnie is a 6 year old shih tzu whom I’ve had since he was 6 weeks old but we’ve been having problems recently. His hair has grown out pretty long and I haven’t washed him in a few weeks but I’ve noticed he’s got a load of poo around his anus which he used to get when he was younger quite a lot. I’d be happy to clean it however he’s being very very hostile towards me. When I attempt to pick him up he begins to show teeth and growl. He’s normally well behaved but recently he’s been very aggressive. He won’t even allow other members of my family attach his lead. I do think his aggression is due to the discomfort but I’m unable to eliviate it without him cooperating! I gave him some calmers yesterday evening as I do before he goes to the groomers so he’s less aggressive there. I thought this would allow me to pick him up and wash him today but I just came back from my walk and tried to clean his feet and he began to growl and show teeth. He’s an absolute mess and I can’t even get near him let alone a groomer or a vet (he has previously been aggressive towards his vet too). I think he definitely has small dog syndrome as he acts very dominantly but when he was younger I just spoiled him and didn’t really train him out of it and not he’s pretty old and its getting too much. I love him soo much but I really don’t know what to do with him right now.