For a while I kept a section of the newspaper outside the door to foill my dasher. It covered more area than my hand alone and acted as a great block that he had a difficult time getting around. Later I took him out on a leash so he would get familiar with the surroundings. That way, if he did get out and away he'd know where home was and, hopefully, stay nearby. It did work. He pushed a screen open one night (a painter didn't latch it) and spent the early hours before sunrise chasing squirrels in the backyard. He knew the yard and stayed there and came right in when we opened the door. It was breakfast time...