I saw an add for a grooming vacuum (hand held) and the cat didn't seem to mind. So my question is has any one bought one? If so does your cat tolerate it well? If your cat does what brand is it? I ask because I would think the noise would bother my cats. I started using a broom and swifter because I got tired of killing vacuums with my litter ..... but I know my cats scatter if a regular vacuum comes out.