George, I don't know if I buy that novocain works on everybody, they just didn't give you enough thought. I needed 4 teeth pulled years ago and the dentist gave me 15-18 shots, can't remember the exact number anymore but do remember he said he had given me 3 times as much as it should of taken to get the job done. Still hate dentists to this day, all those shots and the only affect it had on me was it felt like my tongue was thicker than normal, didn't do a damn thing to numb anything.