食器を洗うのに夢中

You want to be useful to me, don't you? Well, I need you to listen very, very carefully. I'm going to tell you exactly what you can do for me, and you won't even think of arguing because my soft, mesmerizing voice is going to worm into your brain and reprogram you into being a vastly more productive sub for me. I'm never going to need to wash a dish again!