Marion knows that the bridge on her usual route is closed and that, unless she takes the train instead of driving, she can get to work on time only by leaving at least 45 minutes early  She must go to her neighborhood bank before leaving for work, however, and the bank will not be open in time for her to do so if she leaves 45 minutes early
Ttherefore, since she hates taking the train, Marion cannot avoid being late for work
mistakes a situation that almost certainly affects many people for one that affects a particular person alone