You pack up the family and head to Chavez Ravine to watch the Los Angeles Dodgers on Memorial Day. Flags are flying, the sun is shining, and hot dogs are only a buck. Life is good. One small annoyance is that you are sitting in front of "that guy" (and his friends). Obviously the ballpark is not supposed to be a place of tranquility, but some people should probably just stay home. Here are five signs that you are the type of person that should stay away from the ballpark.