In the campus bookstore, an employee came up and began to pet my dog. I said, "Ma'am, please don't pet my dog, he is working." She laughed and said, "Yeah? So I am I!" My fiance then said, "Right and you don't see us trying to pet you!" She abruptly stopped petting Sheriff and stared at us, jaw dropped. She then just walked away. I had to try so hard not to burst into laughter. The exchange and her reaction completely diffused my irritation with her for petting Sheriff!