"I don't know. In theory I don't really have space for all of them." Not that Will hasn't thought about it. The constant companionship is very enticing.
"I think you're just too ..." Will makes some vague hand gestures. "Neat. For pets. They're not for everyone." He shoos the dogs off to the backyard, so Hannibal doesn't get shed on too much, then he takes a moment to feel awkwardly embarrassed about how plain and unkempt his house is compared to the other man's.