He said he has a 4 wire dryer outlet,which means he has a neutral and a ground at the outlet. So why would you tell him to hook the ground wire to the Neutral,he has a ground wire!!! Neutral is the grounded current carrying conductor back to the transformer. Will it work,yes. Do they go back to the same place at the main panel,yes. Is it the right way to do it,NO!! Use the GROUND WIRE!