So, do ultrasonic pest repellers work? I tried one to get rid of unwanted guests, and here are the results. Blowing up your house, obviously, is not an option. What else can you do? Well, if you visit ...

The first time Scott Montgomery heard the noise, his son thought it was a helicopter. “He kept asking, ‘What are those helicopter noises in the background?’” Montgomery said. “And it’s just gotten ...