Keep the sidewalks clean [http://www.youtube.com/watch?v=YZRq3XxCZXo], Ditmas Park: stick to seltzer bottles, squirting boutonnières, and pies in the face. Share your Ditmas Park photos by email at editor@ditmasparkcorner.com, in the Ditmas Park Corner Flickr group [http://www.flickr.com/groups/dpcorner], or tag