This sounds about as realistic as the other one about the guy who turned-up with an anti-aircraft shell in his fundament. Apparently the "cold metal helped his piles"
Hmmm!
He got more than he barganed for when it turned out to still be live. Bom Disposal had to work with it in situ.
piles and others
Rectal Foreign Bodies
(Only slightly not worksafe but not vile)