Im having serious problem with Oliver.
He is 5now, super well taken care and spoiled.
He is not at all agressive to me, he listen to everything I tell him to do. With me hes the most well behaved dog.
I have been going away for work and left him at some dog hotels. They call me the next day because Mr.Oliver has been agressive, hes fine at first but after a while he just snaps, goes MENTAL....crazy......he bites the leash, destroys what ever is around him.
I took him a trainner and he told me in 27 years he has NEVER seen a dog so crazy and do what he does.
I dont know what to do...He doesnt do this at all when his with me, I can have visitors over, other dogs and he does not do anything.
Please help me...Is this normal? (of course not!)