Two firemen standing next a firetruck in the dark .
Chances are about even that two firefighters are getting ready to leave the scene after assisting with an accident .
Chances are about even that two firefighters are getting ready to leave the scene after assisting with an accident .
It is impossible that two firefighters are getting ready to leave the scene after assisting with an accident .
Two firefighters are getting ready to leave the scene after assisting with an accident .