There are a couple theories about why this happens. The first is that it's caused by methane or other gasses trapped underground. The second is that it's caused by wind moving tree."…the larger trees are doomed to blow down but are currently spared, the smaller trees around them help hold each other up, as the wind pushes the trees into one another. The punishing prevailing winds have taken their toll on the side hill, the roots have loosened and the mossy ground from the once shaded forest floor are giving way, soon to be toppled over," he wrote in a now-deleted Facebook post captured by RT.So there you go. Either way, we would not recommend buying cheap haunted homes near hillbillies. That's just good policy overall.