It seems like your father made a decision that prioritizes his convenience and enjoyment over addressing the noisy dishwasher issue or sharing household responsibilities with your mother. This behavior might be seen as inconsiderate or unfair, as it places an additional burden on your mother to manually wash the dishes. However, it's important to consider that individual households have their dynamics and decision-making processes, and it's difficult to fully assess the situation without more context. If this issue is causing problems within your family, it might be helpful to have a calm and open conversation to address everyone's concerns and find a mutually satisfactory solution.