According to Greek Mythology, for the wedding of Zeus (the King of gods) with Hera all were invited by Zeus’s messenger, Hermes. All went for the grand event, except one nymph (a fairy) by the name of Chelone, who not only did not attend the wedding, but even ridiculed the event.
Later, on asking why she did not attend, she mockingly said that there was no place as home to stay! As a punishment for not attending the grand wedding, she was turned into a turtle and sent to earth. For mocking and ridiculing the event, she was made to suffer eternal silence. As if all this was not enough, for her love for her home, Zeus condemned her to carry her home wherever she went!
Now you know why the poor turtle is the way it is!