the author has lent a dollar to his friend, Todd,but the latter has forgotten to return it even after 12 months . their friendship is still strong but the author can never forget that todd owes him a dollar 
this is what actually happened todd had borrowed the doller just before leaving for bermuda to pay for taxi . the author believed that he would get back his doller and so readily parted with it todd sent a letter to the author from bermuda but there was no doller in the envelop .he returned in three weeks and was received by the author at the station