Can you bury the body of a pet and its owner together?

Some pet cemeteries will accept human remains, but in most states it is illegal to bury pets in human cemeteries. Florida is an exception to this law in that it allows human and non-humans to be buried together. Notwithstanding, it is a fairly common practice for the pet owner to ask the funeral director to secretly place the urn of a deceased pet into the casket prior to its being sealed and placed in the burial vault.