Several times today, while walking thru the hallway, I heard voices. Muffled voices...I made sure no TV or radio or ANYthing was on anywhere. Nobody outside, just me and Romeo in the house, and last I knew...the little doggie can't talk, lol. And just now...walkin' down the hallway...the walls were vibrating...and ONLY in the hallway. And yesterday, babysitting a one year old...she kept pointing into the hallway, at something that wasn't there.