I'm a "there's nothing after this life despite what people may have led you to believe, so suicide is pretty fucking stupid" kinda guy.
Also, re: scuba diving - my sister and her bf have recently gotten certified and have been scuba-ing a lot recently. Only trouble is my sister tends to get seasick pretty easily, and has discovered that if she goes out with any kind of a hangover, she feels sick and has to vomit. Which is not such a good thing to do when scuba-ing.