Columbo (character) he is visiting them. "Étude in Black" (1972) marked the first appearance of the lieutenant's basset hound, named "Dog". "Dog" came to be an occasional regular character in the films. Columbo considered names like "Fido", "Munch" and "Beethoven" but ultimately settled on "Dog". In "Sex and the Married Detective", Columbo is put on the spot when he is asked to play the tuba. Reluctantly he agrees, only to demonstrate great proficiency. He subsequently claimed that at school, the tuba was the only instrument left. In several episodes, Columbo is seen eating a breakfast of a boiled egg, usually while investigating
Breed club (dog) of breeding stock (although the dogs must not vary too much in appearance from the breed standard, or they will not be registerable.). The emphasis is placed on hunting ability in the selection of breeding stock. In addition, inbreeding may be regulated. The Jack Russell Terrier Club of America code of ethics specifies that "a terrier will be rejected for registration if the inbreeding coefficient is more than 16 percent" in an effort to lessen hereditary disease in the breed. Independent working and hunting breed clubs sometimes maintain an open stud book. Dog breeds that are primarily kept as pets