Perhaps he was an epileptic and the dog would warn him of a coming seizure. Perhaps he needed to be alerted to fire alarms or some other less dramatic audio alarms or situations.
From my perspective, Gracie is correct about keeping your own immune system up so that anybody else's "germs" won't bother you. That is why we all don't get the "flu" or "outbreak" of the day when it is going around.
I use a dog stroller if I have to take the dog anywhere. And I don't take a dog into a grocery store. But a service dog has a right to be there whether we can understand why or not.
LW888
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"A journey of a thousand miles begins with a single step" Lao-tzu
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