The method with a flexible stretcher was inspired by the method used to change the sheets of an impotent patient at the hospital. The flexible stretcher is placed beside the casualty, and a sheet is put on it. The third of the stretcher that is the closest to the casualty is folded on the middle third. The casualty is first rolled away from the stretcher, and the stretcher is slid against the back of the casualty. Then the casualty is put on his/her back and rolled on the other side; the stretcher and the sheet are unfolded. The casualty is wrapped into the sheet, and can be lifted with the handles of the flexible stretcher.