"What do you do about dogs that don't like Hoovers?" […] At the first opportunity place the Hoover in the area where your dog is lying calmly, and since it is normally the noise that sends it into those fits of anger, it should be unconcerned with a silent machine. Continue to place the Hoover in those areas that your pet is relaxing until it is familiar with the Hoover being in such close proximity. […] By continuing to distract your pet each time the Hoover is switched on but stationary, you should be able to move it a little closer without causing your pet any alarm.