I wouldn't ask this here, but I've not found any answer to this question on the Internet. I was wondering if it's humanly possible for someone to bite something so hard, like a bone by accident, that your teeth break/shatter. Or does the human body know not to exert so much pressure on chewed food that tooth damage will happen? In other words, does the body "sense" when something hard is in the mouth, and knows to stop the jaw from biting so hard?