i am so sorry to hear that about your dogs and i am super glad that they came home safe....i to had a scare like that except my stormy was poisoned by a neighbor and i have the vet records to show that it was but i didnt want to cause any more problems with that issue and it was all because she was a "pit bull" but i hope that you figure out what happened or the next time that they go and try that stunt again that you catch them but again i am so happy that they made it home safe and sound