They were "all" probably in on it! Loose dogs will pack up and get in to all kind of trouble. When I was in high school, I sat in a tree stand and witnessed my uncle's Dobbi, our neighbors well manicured poodle ( hair-bow and all) and a black chow that I had never seen before ran a young buck right past my tree stand!
I warned them but I dont think the poodles owner believed me when I told her what her sweet little baby was doing with the other dogs.
Thats the problem with dogs that run loose. They are left to act like dogs.
T-Bob, I doubt your pup started it but dogs get pups in trouble all the time. Glad there was no hard feelings with your family.