Classy ! I believe wondering when your good deed is going to pay off is pretty much the opposite of doing a good deed . Anyway , despite that ridiculous thought , there have been plenty of times that some complete stranger did something nice for me -- many more times than I ' ve done the same in return . After college , in Cambridge , Massachusetts , I had just finished the Radcliffe Publishing Course and was hauling my suitcase to the T station to get to the airport . That shit was heavy .

Question: What may be the reason that a stranger helped me ?
Answer: The person wanted to go to CambridgeThe person wanted to take a publishing courseThe person wanted to get a payoffNone of the above choices .