`` i take it that 's happened to you before . '' he was asleep , but angel told me in a low voice that the doctor had said he must not sleep long at a stretch . and i wanted him to regret using me , just a little . `` wow , '' i said after eating a chocolate snowflake . `` did n't you invite me here to help you plan a party ? '' i could imagine her smiling as she asked you ? he glanced at the walking fish . human minds could not sustain it . 