"If they forget, however are they to learn? Forgive my ignorance, I've never had a pet, myself. It must take a tremendous amount of patience to be able to train not just the animals, but the owners as well."
Hannibal is pleased, so far. Will seems to be willing to open up, little by little, and talk about himself. Or at least his work. Hannibal finds it best to take a subject that is personal and enjoyable and start the conversation there. And through conversation and revealing bits and pieces of oneself, trust is built.