Didja ever see that TV show or movie about the guy who buried his ill-gotten money in the woods (or back yard), and years later when he got outta prison went to dig it up?
After feverishly digging, he found the remains of shredded bags and bills. The gophers/moles/burrowing critters found it first and used it to make nice, comfy green nests!!
The few intact (sorta) bills were all mouldy and yukky.
g
By the way, let's not forget the money Bill skimmed off from the Arkansas prison blood trade.