
Once upon a time, there lived a little boy called Tommy. Tommy was three years old and always wanted to find shells at the beach.
One sunny day, Tommy went to the beach with his mommy. He looked around and saw lots of shells in the sand, so he started to pick them up. 
Tommy's mommy said, "Be careful, Tommy! You must only pick up shells that are available. If you don't I will have to punish you."
Tommy nodded and tried to be careful. He picked up lots of different shells and put them in his bucket. 
But then, he noticed a really, really big shell and just had to pick it up. He knew his mommy wouldn't want him to do it, but he did it anyway.
When he picked it up, he noticed it was stuck in the sand. He tried his best to loosen it, but it didn't come out.
Tommy's mommy saw him and said, "Oh no, Tommy! You must listen when I tell you something. I said to pick up only shells that are available. Now I am afraid I will have to punish you."
Tommy was very sorry and he promised himself that he would always listen to his mommy.
