There's not a lot I could do. It's been so long I haven't got a clue... I probably wouldn't even notice until they decided to leave.
What would you do if you tried one of those Ancestry.com DNA tests and accidentally discovered that you were not the biological offspring of your 'parents'?
I honestly do not know. I'd buy a whole lot of movies and games, at least. And I would pay people to hang out with me. Cos, let's face it, they wouldn't refuse if I had all that money.
What would you do if you were stood in a crowded street, and the people around you started to turn to dust?
Roll my eyes like this and then blurt out: "That's how Valfar died..." and then put on Journey To The End in his honor and proceed anyway after buying a bottle of booze, a pen, and a notepad to keep in my floorboard for just in case I get snowed into my deathbed.
What would you do if all of your friends took advantage of you and you had to choose between having no friends and having only bad friends?
Probably make a time capsule, hoping there would be some surviving population in the future to find it. It might give me an illusion of not being forgotten. As I fashion it I'd reminisce about the happier years I lived as a boy.
What would you include in a time capsule if it was your only contribution to a future world?