What is going on!? My 3-year-old neutered male collie has a problem with ending doggie "getting aquainted" times. The problem occurs when he is on-leash and is greeting a new dog. He starts fine....sniffing politely....tail waving and friendly, but when we have to leave and I give him a twitch on the leash to signal him to come, he snaps and/or barks at the other dog. It is more than a single "yap"...he sounds and acts like he really means it.
He is fine off-leash and with dogs he knows. He understands "leave it" and "we are working" when we are on walks or at class, but I'd like him to be able to greet new dogs in situations where it is appropriate.