<Tr> <Th> Original air date </Th> <Td> May 23, 2010 (2010 - 05 - 23) </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 104 minutes </Td> </Tr> <Tr> <Th_colspan="2"> Guest appearance (s) </Th> </Tr> <Tr> <Td_colspan="2"> <P> Dylan Minnette as David Shephard Neil Hopkins as Liam Pace John Pyper - Ferguson as Bocklin Alan Seabock as Sub captain Paul Mitri as Roadie Eric Nemoto as Oceanic rep Christina Souza as Jean Note: numerous returning actors are credited to the Main Cast </P> </Td> </Tr>

Which of the following best explains why the fox walks away at the end