WARNING: This one may make your palms sweaty (mom's spaghetti).
This stunt pilot was flying around, practicing stunts in his biplane when the plane's engine failed mid-stunt. By the looks of it, the pilot had pulled the plane into a very steep climb and that's when the engine gave out, causing the plane to immediately start plummeting to earth. The pilot tried numerous times to get the engine started again, but to no avail. It seems as though he eventually resigned himself to the fact that he'd have to make an emergency landing on a roadway and was on final approach when he attempted to start the engine one last time. And what do you know, it fired up!
Watch the video below and see for yourself how crazy this whole ordeal was. You can even hear the pilot let out a "Woooooo!" once the plane's engine started!