I attempted the "no approach" approach by just ignoring it and keeping my own cookware in my room. The issue is that he is now lying in an attempt to escape his own duties (cleaning up after himself). What are you supposed to do about something like this? We share a living space and I cannot just let his dishes fester in the sink for months. I don't think that cleaning up his messes would benefit either of us, because then I'd care more about pleasing his irrational self than I do about doing what is right. I assumed educating him was the appropiate approach. Being a doormat for him to wipe his feet on does not seem like the stoic approach to this dilemma.