All right, he shouldn't have been surprised at such a hostile greeting. They were prisoners after all. As for not looking intimidating, that was rather the point. He didn't want to stand out at all, and he certainly didn't want to look intimidating. He was a book keeper, after all. Most of his patrons had been elderly women. Scaring little old ladies was horrible.
"Nice to meet you as well," he drawled. "There doesn't happen to be any large ball bearings in this aisle, is there?" There were clearly hammers as she had one in her hand