This video is about fixing self-closing doors. Doors close by themselves when they're not hung plumb, and gravity closes the door. The solution is to remove the hinge-pins and to roughen the bottom of the hinge-pins to create friction, keeping the door open. One removes the hinge-pin with a hammer and small screwdriver. Tap the bottom of the hinge-pin against a cinder block or rough, hard surface. If using this "friction-ized" hinge-pin does not solve your problem, try repeating this process on the other two hinge-pins. This should solve your problem and is much easier than rehanging your door.