Too funny, my guys hate the vacuum but usually just lay in their bed and watch every move it makes, the other day I was emptying the collection bin and heard a crash, I came back in the room the vacuum was knocked over and both dogs were sitting right there like statues with that look on their faces like it was like that when we got here. My male figured out that if you unplug it the noise stops so he used to wait till the cord was a little taught and he'd step on it, the vacuum would shut off I'd turn around and there he is with his big goofy paw just standing on it.
I used to have an amstaff and a roomba, until the roomba snuck up on him, after that day I had an amstaff and pieces of a roomba!