"I believe so," he says judiciously, moves the bowl to a spot that will catch less shadow over the next hour or so, dusts something into his cauldron, stirs three times deosil, and moves to the hall to slide into his frock coat (the compromise between muggle jackets and robes fit for a living Binns). After a moment's consideration, he taps a warming charm into it, and opens the outside door. "You'll tell me what's what in the area?" he supposes.