We used to dive an old garbage dump that was originally at the end of a dock out from a Spanish American War veteran home/hospital.
We dug in one spot for a couple of years and the bottles and junk just got older and older. At one point we started finding arm and leg bones as well as one partial jaw bone ... all human.
In those days, amputated parts were just tossed out with the regular garbage.
We dug a special hole off to the side of the dump and placed any bones we found there. We even made a concrete memorial marker for the hole. However, after about a year, some A**hole took the marker!

I guess that was HIS weirdest thing.