So, Bella isn't the only one, huh? Bella goes nuts when I vaccuum or sweep. She will bark, run around like crazy, and just generally become a nuisance. I've tried letting her "investigate" the vaccuum cleaner and broom but as soon as they move, she's at it again. I don't know if she is actually scared or if it is a game. My other dogs (lhasa's) lay on the sofa and look at her like she's nuts!