I have a 12 week old golden retriever puppy. He has just started going out for walks and on the whole is loving it. However half way up our street are two Weimaraner. The male is very agressive and wears a muzzle. So far the owner has crossed the road when he sees us but just the barking has our poor pup quaking. I am really worried about what will happen when we met these dogs off the lead whilst walking through the local fields.