Groups such as PETA, and SHARK, and the Humane Society of the United States generally take a position of opposition to all rodeos and rodeo events. A more general position is taken by the ASPCA, only opposing rodeo events that "involve cruel, painful, stressful and potentially harmful treatment of livestock, not only in performance but also in handling, transport and prodding to perform." The group singles out children's rodeo events such as goat tying, calf riding and sheep riding (“mutton busting”), "which do not promote humane care and respect for animals."