It is quite common to bribe a dog to do go-outs by placing an expected toy or treat at the end of the ring. This can result in a dog that does crooked or short go-outs in the ring. There are times in practice that I reward my dog by throwing a toy, playing tug-of war, or giving him food. However, before I enter a show, the dog must understand that the rewards are a bonus, not his sole reason for performing. The correction the dog receives from his handler.
Corrections can certainly motivate a dog to perform.
However, if the dog is solely motivated because of his desire to avoid a correction, he will soon discover that during a performance, corrections do not occur. He does not stop performing because he is spiteful or because he wants to get even with you for correcting him, but because he is situational. It is easy to discover that in a show situation, you will not correct him. The most important reason that a dog performs correctly is that it is his habit to do so. A few days ago, I was watching my husband's dog heel.