hey everyone..... Just recently, my cousin moved to the US (we're from canada) and she left her 9 month old female shar pei with my family until she gets settled in. I own a 12 year old male Golden Retriever. Now both dogs are always, what seems to be, fighting each other. The majority of the aggression is coming from the new dog. It's only been like 2 days since we got her, but both dogs are staying on different floors in my house, away from each other. Is there any way to get them to socialize and stop being aggressive toward each other?