No Inheritance for You!
If you know that your grandparent is on the final stretch, never do or say anything to offend them. This is like Inheritance 101—stay on their good side for just a few more years (or months), and you’ll be rolling in the benjamins. Of course, this is assuming that you’re even a part of the will in the first place.
Telling your 87-year-old grandmother that’s being a bit “optimistic” for wanting magical milk that extends your life will earn you a ticket to get-out-of-my-will-ville. Nice going, OP, you played yourself. Now, you’ll never enjoy dusty doilies and furniture wrapped in plastic.