Just like what Phil did in the US Open one year. Except instead of taking an unplayable he went and hit his ball before it stopped rolling. He should have let it stop and taken an unplayable
Probably a more realistic experience would be when at 60 yards from the hole you skull a shot into the face of a sand bunker. Buried with realistically no chance being able to extricate it. Declare it unplayable and re hit.