Rarity felt a little miffed at his request, it wasn't the first time he'd ask her to smell something. Using her as some sort of search dog. Though she knew he wouldn't be asking, if it wasn't for both of their benefits. They had a little fight about that, and he conceded to respect her more as an intelligent being rather than some animal to be used. Which he apologized sincerely for, admitting that sometimes he forgot just how 'human' she was. 