evil_elf, that is strange...maybe you did't hit a nerve or something. I learned that some points on your body feel different when you touch them. One point may not hurt at all when you poke it with a pin but then a centimeter off it will. But I doubt it has to do with that. This can be good or bad, but if it it stops the habit, it's good for now. I hope your pencils are led free lol.