Maine coon cats can be toilet trained. In this video, “Billy”, a 1.5 year old Maine Coon demonstrates his skills. His owner used a make shift system to train him. He started by using a heavy duty bin liner, over the toilet bowl, with cat litter. Over time he removed the liner and realized perhaps his cat felt vulnerable when going number 2. So he addressed the issue by covering the floor around the toilet with boxes that are a height more level to the toilet, reducing the exposure feeling of being on top.
Nice work. Wonder if he is going to learn to flush next!