Just in case. What does it mean in the story of frog and snake?

Mother frog and mother snake each have a son.

One morning, the little frog and the little snake met on the road. They have never met before. They stood there, looking at each other, their eyes shining. The little frog will jump out of the reach of the snake. The little snake is also ready to leave, just in case. Just then, a fly happened to fly in front of the little frog. He jumped up briskly and stuck out his tongue to catch flies. A bug climbed up the snake's nose, and the snake stuck out its tongue and caught the bug. They looked at each other with envy, smiled and suddenly felt like old friends.

On this day, they had a good time in the bushes. The little frog taught the little snake to jump, and the little snake taught the little frog to slide. Before you know it, it will be dark. The little snake said, "Goodbye, little frog, you are my best friend!" " The little frog said, "goodbye, little snake, I like you!" " ! ""They hugged each other tightly. Little snake is very happy to find a real friend. He held the frog hard. "Easy, it's too tight." Said the little frog. "I'm sorry!" The little snake relaxed a little. They separated, and along the way, the little frog glided, the little snake jumped and went home separately.

The little frog went home. Mother frog opened the stone gate and was shocked to see her child sliding across the floor. Mother frog trembled and turned pale when she learned that her son had stayed with the little snake all day. She pulled her son over and said, "The little snake belongs to the snake family. They are bad people. Stay away from them, do you hear me, son? "

When the little snake came home, the mother snake opened the door, and the little snake turned over, then jumped on the table and jumped in the air. Mother snake said strangely, "If you go on like this, it will be strange if the bones on your back don't break." Who taught you that? ""It's a little frog. " Little snake said little frog? "Mother snake opened her mouth wide to show her fangs." Son, you mean you stayed with a frog all day and came back hungry? Don't you know that eating frogs is a custom in our family? Frogs taste delicious. ""Mom, I can't eat this little frog, it's my friend! "The little snake cried." Frog is your friend? God bless! Next time you meet him, eat him. "Mother snake said loudly.

The next morning, the little snake got up early. He went to the bushes and waited all day, but the little frog never came.

Little frog and little snake will never forget the day they spent as friends. They deeply remember the games they played together in the bushes. They all thought: If only we could play together all the time.