I was trying to explain to him about another electrician doing just that--not to mention he appeared to have landed a multi-wire circuit on the same phase. I tried to explain to him about the dangers of overcurrent on the neutral but he didn't get it or didn't care. Either way, I now have a red flag on his file and this contractor will need to submit detailed plans for any work he does, no matter how simple. I ultimately hope this keeps him out of my town.