"Hi I'm a dishwasher. I don't have hands, or any kind of limbs at all, just a spinning thing that sprays water over your dirty dishes and makes them clean.
Technology is a wonderful thing, and yes they've got a rover thingy on Mars now gathering samples of rock, presumably with some sort of arm-like device, but back here on Earth, in this kitchen, in this dishwasher, no arms. Got it?
Sooooo...when you put your cups, plates, glasses, spoons yada yada on my top, I can't clean them! I know! How very pathetic is that, what a waste of technology, sending a machine to Mars to pick up stuff, when right here, in this kitchen, those arms could be doing something genuinely useful like stacking my racks