Hog-dog rodeo or hog-dogging, is a spectator event that simulates wild or feral boar hunting with dogs. It requires specially trained and bred "hog dogs" that are used to bay and sometimes catch a hog or boar. In most cases, bay dogs psychologically control the pig and no physical contact occurs. In some cases, however, such as Uncle Earl's Hog Dog Trials, along with bay dog events, catch dog events have been included in the past. In these, specially bred and equipped dogs caught and held the hog by the ears before the animals were quickly separated by a person who hog-tied the pig.