I, your mother / friend, being of sound mind and body, do not wish to be kept alive indefinitely by artificial means.
If a reasonable amount of time passes and I fail to ask for at least one of the following:
Glass of wine
Margarita
Sex
Martini
Cold Beer
Chocolate
Chicken fried steak
Cream gravy
Sex
Mexican food
Chocolate
French fries
Chocolate
Pizza
Sex
Ice cream
Cup of coffee
Chocolate
Chocolate
Sex
Chocolate
It should be presumed that I won't ever get better. When such a determination is reached, I hereby instruct my appointed person and attending physicians to pull the plug, reel in the tubes, let the 'fat lady sing,' and call it a day!