Years ago while hunting some vacant forrest type land, I found a lead or pewter
type plaque.. I brought it home but after awhile it seemed to me may be part of a grave marker.
I was not positive what it was but it gave me the creeps I returned and burried it back where I dug it the next morning.
I have also found burial tags in the middle of nowhere needless to say they stayed where I dug them, though at first it looked like a gold coin.
If we hunt a lot weird stuff usually shows up. I agree no one should disturd the dead.