Today I tried to introduce a collie mix called Dixie and a golden retriever called Bella. Both girls have been spayed but both are very vocal. Dixie is a very typical collie and can be quite snappy round the face of other dogs. Not in aggression but in excitement.This obviously doesn’t come across too well with others. She has walked with both Dennis and Perry but both are very submissive. (She does stop when you say no) Then there’s Bella the Golden R who is very growly when she first meets Den and Perry but then settles down and we have a great walk (she growls every time they first meet even though she knows them) Introductions between Dixie and Bella did not go to plan! (Bellas owner had her and I had Dixie) I thought after initial reactions they would settle and I gave them both treats next to one another without a problem but the minute that stopped Bella started growling again :-( so Bella went home again. Is this because bella is dominant?