It could be a number of things: the dog is being territorial, isn't socialized enough (thus being unsure or afraid of strangers, or has learned to be aggressive towards other people), or it is dominant over you and thinks it's protecting you against other people. Another thing is that you probably inadvertently tried to reassure the dog by petting him, only this caused him to think it was okay to be in this state of mind (afraid, unsure, aggressive, dominant, territorial) towards strangers.
dog no he doesnt have a girfriend he has a wife
coyotes and strangers
The dog barked and howled at the cat in the backyard.
maybe your doing something that the dog doesnt like or you dog maybe wants to play
Because he doesnt like it or he is really excited ... you can tell by there faces
my dog personally doesnt like liking the base boards but yours might, many dogs like licking certain thins. my dog likes feet and your dog might like base boards.
Your Labrador male dog should start barking at strangers when it is at least 12 months old.
MAYbe she doesnt like him or maybe she wants a better doggy
Justin Bieber Doesnt have a dog,he also doesnt have a pet.
Perfect Strangers - 1986 Dog Gone Blues 2-12 is rated/received certificates of: Australia:G
what? umm my dog doesnt maybe you spilt syrup on your dog and never gave him a bath? why are you smelling your dog?
Perfect Strangers - 1986 Dog Gone Blues 2-12 was released on: USA: 7 January 1987