I've been watching all twelve hours of "The Lord of the Rings" trilogy in the middle of the night as I've struggled with sleep issues (a BluRay version came my way this Christmas), so indulge me on this one:
(If you need to read the books or watch the movies to make this relevant, I'll wait so you can catch up)
The Ring, which threatens to destroy all of Middle Earth, is cancer.
Gollum, a very tricksy and foul creature who is nonetheless crucial in destroying The Ring, is chemo.
And Samwise Gamgee, the Hobbit who protects Frodo with no regard to his own happiness and safety, is my wife.