At the end of yesterdays vet visit we were standing at the counter waiting for the vet tech to bring out Busters Rx (doing another round of Panacur next week) and ask the vet which Frontline to use on him...he's in between dosages and growing fast enough that he'll hit the next "size" up within a week most likely. A guy and his dog (Boston Terrier, I think) came out of an exam room and due to a blind corner and none of the humans paying close enough attention the dogs had a chance encounter. The Boston spooked (her whole body was the size of his head) and snapped at Buster, he yelped (Ive never heard that sound from him, even when he got his shots) and backed away quickly. No marks on him at all so Im not sure there was any physical contact between the dogs. After a couple minutes he was fine and trying his best to get her to come play...lots of play bowing & barking (he does the same moves with a friends ACD). I held him close to me, the other dogs owner kept her close to him...neither willing to risk a bite. This afternoon has been a different story. During his potty walk a neighbor was out with her pup (not sure of the breed or even if its a pup vs a small breed), Buster bolted for the house at the first sight of the pup (leashed, as always, so he didnt get far). Best bet is to find him some friendly little dogs, right? That will be one heck of a challenge, I know very few little dogs none that I'd trust to be puppy safe. His ACD buddy isnt allowed to play right now, she's in heat and more moody than normal (according to her owner).