Spike listens to her advice and takes a moment to consider it. He isn't quite sure that he knows the difference between wishing and willing, though willing himself not to spontaneously materialize books sounds more difficult than the opposite. "I don't will anything to happen," he grouses, "It just does. Concentrating on not dropping dictionaries on my head twenty-four seven isn't gonna happen."

Understandably, he's more focused on getting the entire power to stop completely instead of learning to apply it precisely. If he did learn to control it, he might never have to go to a bookstore again, but he figures it would still involve getting repeat blows to the head and shoulders on a daily basis.

He hasn't yet considered that it might be possible to materialize books somewhere other than directly above his own head.