Lonny Joe owned two rare 1955 Ford Thunderbird automobiles, one red and one green, both in mint condition. He stored the cars in his garage. His friend Stephanie wanted to use the red car in a music video, so Lonny Joe rented it to her for two days, for $300 per day. When she returned the red car, Lonny Joe discovered a long scratch along one side. That same day, he noticed a long scratch along the side of the green car. He sued Stephanie for harm to the red car. Lonny Joe sued an electrician for damage to the green car, claiming that the scratch occurred while the electrician was fixing a heater in the garage. Explain the different burdens of proof in the two cases.