Does your SO ever help you clean the bathroom?

My SO has a habit of pis*ing all over the stool. He claims he aims for the stool but the water splashes back up & that's how it gets everywhere. Instead of him cleaning it at least once a week I have too otherwise it would NEVER get done. I just don't feel like it's right that I have to clean somebody else's pis* up. So does your SO ever clean the toilet for you? And do they tend to pee on the stool too?