You should read some law. If someone who knows you, or has some type of "interest" in you, ie family, friends, etc., has "something" that can possibly show that you have been contemplating suicide, all this person, or persons, would need to do is go before a judge and get a "stay" put on your directive. If a stay is issued, more investigation would be conducted toward the veracity of the claim that you were not in your "right mind" when you made your directive. The point may become mute if you are in such a bad way (no brain function). Now, finding the right judge to do something like this may be a challenge, but certainly is not outside the realm of possibility.