Argument by analogy is fundamental to the common law system. Likening the facts of other cases to the facts of the case before the court and arguing for a favorable outcome based upon those cases is how many are won. By determining which, if any, case cited is factually similar to the case at bar to be precedent in a particular case, is how judges often determine whether they are bound to rule for one side or the other.Two recently issued opinions, involving tragic situations and concerning whether the Chicago Transit …