 In a 2007 advertising campaign, Jack in the Box aired a series of television ads in the United States that disparaged several rivals' Angus-beef burgers in which it was alleged that they equated Angus beef with an anus.Rival chain operator CKE claimed the ads were misleading because they confuse consumers by comparing sirloin, a cut of meat found on all cattle, with Angus, which is a breed of cattle.CKE, operator of the Carl's Jr. and Hardees chains, had been noted for running controversial ads and claimed that there was no comparison between the ads they were running and those of Jack In the Box because their ads did not insinuate their products came from an undesirable part of cows.