The weird beats on

Our lights would come on or shut off by themselves. One day as my wife was talking on the phone to a friend, she saw, through the transom that the lights in the parlour had come on, shut off, and come on steadily again. Telling the friend the she intended to investigate she and our two brave schnauzers went down the main hall to enter the room where the light switch was located. She said she suddenly heard heavy boot steps coming out of the room, through the door, and down the hallway toward her. She said she "froze on the spot", but the schnauzers turned and ran (later to be found huddling under the kitchen table) anyway the footsteps went right past her along with a cold breeze, a door was heard to open and shut (at that time there were no doors on their hinges in that location.Later, the town constable ask he why we were up all night, I assured him that were were not. But he said the lights in your downstairs go off and on all night long on frequent occasions.