Kennedy's obsession with water

This is not original, as I have heard it referred to on several radio shows. It is amazing how many times Ted Kennedy makes references to water. With the Chappaquiddick drowning eternally over his head, one would think he would make every effort to avoid making any statement that might conjure up an image of the drowning Mary Jo Kopechne. However, Kennedy seems to gleefully engage in these metaphors such as "in over our head", "white washing", "drowning" and many others. Either he suffers from a Macbeth type obsession, or he downright enjoys tweaking the nose of the world by gloating over the fact that he got away with it. Only in this life, Ted.