
Once upon a time there was a boy named Tin. Tin was three years old. Tin was very curious. He always wanted to explore everywhere and try every new thing.
One day, Tin was playing in the park. He was so excited that he started running around very quickly. Suddenly, he ran too far and couldn't see his mom anymore. He got scared and started crying.
At the same time, Tin's mom was walking around looking for him. She was so worried that she started calling his name.
“Tin! Where are you?”
Tin heard his mom's voice and yelled back: “Mom, I'm here!”
His mom came running towards him and hugged him tight. She said:
“Tin, don't ever go away like this again. I missed you so much!”
After that, Tin never strayed away from his mom again. She would only let him go as far away as she could still see him. Whenever his mom had to leave home,Tin would always remind her:
“Mom, don't forget to come back before it gets dark! Otherwise, I will miss you!” 
Tin learned that it is important to stay close to his mom and not wander around by himself. It's not safe and he can miss her very soon. Even if it's just for a few
