In March 1973, during a routine stomach operation, the royal veterinary surgeon found the undigested bodies of three royal butlers inside one of the Queen's corgis. The corgi was arrested when it was discovered that all three butlers had continued to use their Visa cards after their respective disappearances, and their banks revealed that they had bounced nearly twenty cheques that appeared to have been signed with paw-prints. The corgi, whose anonymity has always been preserved for reasons of national security, died in Wandsworth jail in 1977, during a knife fight with another inmate over a high-stakes game of poker.