Saying their respective justifications were good to go whenever necessary, local couple Mark Wondrich, 25, and Cara Marshall, 27, reported Friday that they each have a comprehensive list of reasons why they should break up with the other on standby. Things are actually going pretty well with Cara right now, but just in case it starts to go bad, Ive got a dozen or so reasons why its best to call it quits on our relationship that I can pull out at a moments notice, said Wondrich, just minutes after Marshall privately divulged to reporters her own mental catalog of well-thought-out arguments for terminating their relationship, which included Wondrichs tendency to ignore her, her desire to move to a bigger city, and 10 other flaws that would serve as a compelling rationale for splitting up. I might not need this list for a while, if ever, but either way, its good to know that if I ever feel like todays the day, this things just sitting here ready to roll. At press time, a disagreement over weekend plans had led both of them to add the others stubbornness to their steadily expanding lists. 