All I know is that Harry isn't afraid of the vacuum, and I've been trying to "train" the little foster kittens to not fear it too... so far so good! Today when I vacuumed, Flutter sat right where she was in the room and didn't move, she just watched me go by with the big bad machine! I am so amazed, since every other foster kitten I've had has been terrified of the macuum, and they would run to hide for HOURS. That made me a nervous wreck trying to find where they hid. Murphy once hid under the dishwasher -- who knew there was a way to get under it!!