They spray deer musk in big cat enclosures, and freeze a polar bear's fish supper in blocks of ice.

ECONOMIST: From zoo cage to modern ark

It is an expensive hobby, but it is one that is becoming more popular and Susan believes the koi were stolen to order to be sold in the Republic of Ireland rather than ending up as a fish supper.

BBC: Japanese koi carp stolen in Omagh

Even his diet was ordinary: a beef sandwich for lunch, fish for supper.

ECONOMIST: George Dawson