Cow tipping, while unrelated to cow-orking, remains a highly competitive sport in several states. The sport remains small, primarily due to the difficulties in gathering a paying audience. == Bull-orker == The National Cattle Producers Association has an ongoing campaign to warn people of the negative consequences of attempting to ork anything but cows. Several deaths have resulted in untrained individuals attempting to ork bulls, llamas, sheep, rugs, mice, and carburettors. ==Cow-orking in Peter Chimaera's work==