 $180,000 house, she just flat took off. She was the first person driven out of the city by what's come to be known as the Kokomo Hum. But indeed, she may not be the last. As many as 90 people in that town are complaining about a low-frequency hum, and it's been going on for three years, according to the city attorney there. Now, while most residents didn't hear a thing, beyond the typical sounds of the city's factories and roads,