She went out on the bog again, and she began footing the turf. She heard a noise at her side while she was stooping down, and when she rose, she saw the gentleman standing at her side. He had a smile and a big long harrow in his hands and a pair of new shoes hanging from its top. "You have done well," he says. "I am the Devil, and I have been wanting to spread disaccord in that couple, but I failed. Here are the shoes," he says extending to her the harrow. "I will not be able to hand them to you myself because you are more accursed than myself now."

Why did the devil use a farming tool (long handle harrow) to extend the shoes to her?