hi i have a 22 month old border collie which we rescued from another family as she was been dis-treated, she was always left outside , never allowed in the house and never received any affection of any kind till sh cam to us 4 months ago. she is a lovely dog and very obedient at times, she has learnt really well who is boss in the house and what she can and cannot do but when my 2 year old son is playing with her she gets very excited and hyper which then quickly turns into aggression, this will consist of nipping at his hands and feet, chewing his arms and legs and on two occasions she had jumped up to him to knock him on the floor and it was like she was pinning him down and was trying to get her jaw around his head. she was sprayed with water and was told firmly bad dog and got put in her bed, but She doesn't seem to be improving can someone please help.
p.s. we have had border collies previously and have never come across this thanks
p.s. we have had border collies previously and have never come across this thanks