My friends kid was in the age when the new teeth start replacing the older one. While eating a sandwich in a restaurant, the boy felt there was something hard like stone in the bite. The boy took out the stone like thing, gazed at it and said in a rather loud tone “Dad there is someone’s tooth in my sandwich”. Understanding what has happened, he said to the boy “open your mouth”, examined his teeth carefully and said ” It is not someone’s tooth its your own”. The boy smiled and stored the tooth in his pocket.