When Hannibal the Cat was a small kitten I had to ensure, that he was not in-side the washing machine, before I started it. My cat had always been very fascinated by a washing machine, when it is washing. I assume the movement of clothes some how is like chasing a mouse.
Yesterday evening Hannibal the Cat again became activated to chase a washing washing machine.
Remember to put sound on, so you can hear the sound of cat feets attacking the washing machine.