Don't you hear the strangest things sometimes. Dear Coz was sitting in his conservatory minding his own business when there was a 'clunk' up on the roof. Looking up there was a beautiful Koi Goldfish lying there. Dead!
Some naughty Harnser (Heron) had swiped it from a pond nearby and it obviously was too large to carry away. So he went hungry and the pond owners are missing a beautiful Goldfish.