Hi, I have a 5 month old chihuahua who is a rescue. I have had him for 6 weeks. I was told he was not socialized with people at all and would need some work. So I have been diligently working with him. He has bonded to me no problem. He loves other dogs and animals. Plays extremely well with dogs and cats. No issues at all around food or toys with other animals. (we have 2 cats and he plays with my friends dogs). He has started to sneer and snap at my daughter (19 yrs old) when she holds him. I know she has not done anything to hurt or scare him. She has her vets assistant training, she has worked in vets offices around animals and is very comfortable with dogs and cats. But every time she picks him up when I am around he wont let her get too close. I am at my whits end and I dont know what to do about this. The last thing I wanted was a snappy dog. I have been taking him to puppy classes and I am doing everything that I am told as far as socializing a rescue dog. I am wondering if any one out there has any advice to what to do at th emoment he sneers. He always sneers before he snaps. I do NOT want to have to have a muzzle on him. I am sure there is something I can do to help him realize that he hasnothing to fear.