Meticulous attention to restoring your own future gravesite after the graverobbing will not prevent altering the future in ways impossible in the normal passage of time. Obviously, unspeakable events will unfold.

I propose, in order to prevent any time slippage issues, I offer a future grave robbing service. In the the future, when you are gone, but I am here, time travel tech will be a-ok!

So you can pay me now, and receive your own bones at any point in your life. We have a London shipping underwriters service to guarantee satisfaction and we try really hard to avoid "time crimes", hahaha who are those time cop clowns

OP is a homunculus from OG Fullmetal Alchemist.

Dig up your future bones, bring them back in time and bury them in the same spot.

Only YOU can prevent paradoxes. Time travel responsibly.

I mean you never know when you'll need a spare set of bones. It's smart to keep an extra set of bones in the trunk of your car along with some emergency equipment, ropes, and a shovel.

"On what grounds"?

guys I can't find my boner

I’ve pondered on the idea that, although not comfortably, you could in theory have any bone in your body surgically removed and live to see it. Except your skull. You’ll never see your own skull.

Why does your time machine copy you?

It's hard to find a flaw in his logic.

Get cremated. A lot easier to grab an urn off your Grandkid's side table.

see if they're dry

It won't work as there is no you remaining to age, die, and leave bones for you to find.

What you need to do is travel back in time, stop your past self from doing the same, and THEN going forward in time to get your bones.

You're not supposed to see yourself when you time travel