Justice, an 8-year-old American quarter horse, was covered in lice and 300 pounds underweight during a veterinarian exam last year, The Washington Post reported. His genitals were so frostbitten, they still might have to be amputated.Now, the horse is taking its former owner to court for negligence. No, that's not a typo.The lawsuit, filed in an Oregon county court, seeks $100,000 for veterinary care and damages for pain and suffering. The money would fund a trust to help maintain his future care.Justice's previous owner pleaded guilty to criminal neglect last year after leaving the horse outside and underfed, the newspaper said.The lawsuit is the latest attempt to have an animal recognized in the court of law.“There have been a lot of efforts to try to get animals not only to be protected but to have the right to go to court when their rights are violated,” Animal Legal Defense Fund litigation director Matthew Liebman told The Washington Post. The organization filed the lawsuit in Justice's name.In previous cases, judges have found that animals lacked a legal standing to file a lawsuit.A chimpanzee named Tommy sued his then-owners for freedom in 2013 and lost, The New York Times reported. Earlier this year, a federal court ruled that a monkey could not sue for copyright infringement of selfies, according to the Los Angeles Times.Those lawsuits “haven’t found the right key to the courthouse door. And we’re hopeful that this is the key," Liebman told the Post. His group thinks Justice's case has a stronger chance, due in part to Oregon having progressive laws for animal protection, he told the Post.