One of the employees working at the shelter where the dog, Target, was located mistook her for a different dog that was scheduled to be put down. -ℒℯ ℳℰℳℰr
I don't really believe that they are only as smart as a two year old. Considering the fact that service dogs for the disabled can do extensive tasks. Dogs are pretty smart.
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And also, its a good sign if you can hug your dog. It means they acknowledge you as alpha.
They could have been submissive dogs, their leader (owner) was besides and didn't show any signs to attacking or what ever so the dog didn't attack, just patiently waited until this strange two legged thing would stop doing what ever it was doing ;) just kidding, but maybe it was very people friendly dogs?
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And also, its a good sign if you can hug your dog. It means they acknowledge you as alpha.