You are of course all assuming that incidents are independent of each other. This may not be the case, as psychic ripples in space/time from incident 1 impact on the other lives in "Gray Close". Of course, the degree to which the ripples hold true or dissolve into existential white noise depends entirely on the residents and their ability to preconceive happenings. I think it is more likely that "Gray Close" is inhabited by psychic tools, who trip over the first paradox they see and hurt themselves. =) ValhallaShoes