two fellow dog walkers have fallen out as one dog has bitten the other twice now. (neither are cocker spaniels) i have suggested a trainer to the owner of the one who bite, she has chosen to muzzle him when the other dog is around. my pepper plays happily with them both but was very thrown this morning when the one dog had a muzzle on.the dog didn't like it and Pepper barked at him , went into play position , but didn't really know what to do. It's very upsetting for everyone. what do other people think about the use if muzzles?