Jason Kottke points to a list of recipes from Leningrad during the Nazi blockade. This is gut-wrenching:
Soup from pets and domesticated animals
Meat is ranked by taste in the following order: dog, guinea pig, cat, rat. Gut the carcass, wash well and place in cold water. Add salt. Cook for one to three hours. For aroma: bay leaf, pepper, any sort of herbs, and, if available, grain.