Hello I'm new, and have a few questions regarding my New addition 6year old blue roan cocker spaniel. I Rescued him in June this yr and he has aggression problems regarding all dogs he also doesn't like children very much either and his behaviour is very unpredictable. He can't be trusted to walk past anyone really without barking and lunging. For this reason i put a muzzle on him on walks just in case.... He is absolutely fine with my Springer , and he is a lovely loving dog and loves everybody indoors. The minute he goes outside he transforms into a very angry dog. I had one to one personal training as i cant get him to a class because of his aggression. It was helpful but didn't change his out look. He has bitten his previous owners so i know he can bite. I have managed to find some where to take him where there were no one and no other dogs and for a few weeks we had him off lead having the time of his life no muzzle no lead , his recall was perfect all was looking good for while. Then total out of the blue on the way home on a walk on his lead he bit a man's jacket as we tried to cross the road. The guy was a bit to close for comfort but no excuse for Joey's actions. So he's back on the lead with his muzzle on. The lead and muzzle just seem to magnify his behaviour but off lead is just not being responsible.. Any ideas ? as i don't want to stop taking him out altogether but that's how i feel sometimes , in doors he's the perfect dog. Thanks Denise