All of a sudden, this woman near us gasped and said "I didn't even realize there was a dog there!"
And, now that she realized there was a dog, there, she began baby-talking to him. Isaac just lay there quietly, ignoring her.
Finally she said, "Well. The tail is not even wagging."
I sighed and said "That's because he is working. He's not supposed to socialize when he's working."
She said "Oh. Oh. well, I guess I will stop talking to him then."