《睡虎地秦墓竹简·其于部分·法律答问》
甲所要偷的是羊，绳是拴羊的，甲就把羊牵走了，不应以超过盗羊议罪。
甲意所羊，而索繫羊，甲即牽羊去，議不為過羊。
The criminal intended to steal the sheep, and the rope was used to tie it up. Therefore, the criminal should not be punished more severely than if he had only stolen the sheep.