One of the greatest urban legends of our time revolves around this children's rhyme.
Words do hurt.
They make kids never want to come to school again. I never wanted to come back after another student thought it would be really funny to trip me. That trip broke my wrist. Or what about the time that I was teased so terribly for wearing glasses that the big kid in my class took them off my face and taunted me with them. Because I am different, I have always been teased.