Mary,

"Great minds think alike" I agree, it's all about risk .vs reward in my opinion. I enjoy the exhilaration of risky or uncommon adventures, but I'm always concerned with the alternative experience if things don't go well. For instance, I don't like events that only have two extreme outcomes, like sky-diving, where you either have the best experience of your life, or the last experience of your life. I don't mind risking injury (or even rescue), but instant death gives me pause.