ok out of now where my little sampson has been acting agressive.now he always barks at everything but usually when i say no barking he stops. well recently he has become very protective i guess. he didnt have enough "you know what" to do it but he was charging at a dog that weighs oh about 90 lbs. this is our neihbors dog she has been living their for months. why would he act so agressive towards her all of a sudden. i also noticed the other night a friend with his 3 year old daughter came over and he was barking and growling at him. he never acted this way before.he is still a sweat innocent little boy but i dont know why he is doing this to people. maybe its territory with the female dog but theres no reason for him to do this to people. he is very socialized, 11 months old, around children and adults all the time we also have a 80lb. female dog and he visits my friends yorkies. im worried because i dont want him to nip anyone. how do i stop him acting like this. could this be a sighn that my little female makya is coming into heat? or is this a traing issue?
