The sphere of influence can extend indeffinately into the past. Etymologically negative fun is realted to the ancient
greek saying that "one can only judge whether a
man'
s life has been good after he has reached the end of it". If event E at time T of someone's life had extreme suckiness, it could, by virtue of its negative fun sphere contaminate the whole life of said individual.
Going to the dentest suckked so much that the suckyness of it all retroactively contaminated last weeks
epic shindig. As such I must now reverse my position and maintain that ur party sucked by virue of negative fun.