up, he was forced to crawl into the back of the device, but it  was made of sharp fiberglass. After wrapping his knees with towels  and putting on heavy gloves, he had to carry the dynamite in his  mouth to place it in the head of the "shark," where his picture was  taken and is now in the archives of Woods Hole Oceanographic  Institution, along with the oral history that describes his  contribution to this classic movie.