across the street today there was a tree removal company cutting down this giant oak tree, which i believe was dead anyway, in our neighbor's yard. when they cut the main trunk and the behemoth toppled over it shook the ground rather vehemently. at the time i was here at my computoer doing god knows what, and i about pissed myself. it was like that scene from donny darko when maggie gyllenhall enters her house at the beginning of the movie and you see the entire house shake (which we later find out is a plane engine falling on the house). it was pretty weird, but definitely cool post hoc.