 Place a shovel, branch, hiking pole, or such near the head of a sleeping person for roof support, to break a falling roof to create an air gap, and/or as a tool to dig out.One shovel should be left outside to mark the door and aid rescuers in digging occupants out.Some users prefer a marker to be left outside the quinzhee nearest the heads of sleeping occupants to indicate where rescuers should start digging.