What is a good topic for a composition about memories?

Interesting Stories from Childhood

Childhood is like an endless stream, flowing slowly in my heart. In this stream, there is joyful laughter, There were also sad tears, but what I remember most is a silly thing I did when I was a child.

That was when I was four years old. One morning, grandma was cooking in the kitchen and found that there was no salt, and she was at a loss. Why? Because I am the only one left at home. If she goes out by herself and leaves me alone at home, who knows what will happen? So feel uneasy. At this time, I saw through my grandma's difficulty, and volunteered to grandma: "I will help you buy the salt." "You?" Grandma looked at me doubtfully. "Yes! I have been there several times!" (In fact, I have not been there.) Grandma nodded helplessly.

Soon, I bought salt back from the canteen. I was happy that I could do things for adults, but I accidentally stepped on a banana peel on the ground. I suddenly fell down, and the salt bag fell to the ground and broke. The white salt was scattered all over the floor. I immediately panicked and thought: The salt fell on the ground and became dirty. I have to tell the bad news quickly. Grandma listens.

As soon as I arrived at the door of the yard, I saw Grandma Wang next door washing rice. I suddenly had an idea and thought: since rice can be washed clean with water, then salt can also be washed clean. Thinking of this, I immediately borrowed a basin from Grandma Wang. I came to the street, put salt into the basin, and ran to the faucet in the courtyard.

The basin was quickly filled with water. I shook the basin vigorously, then put my hand in and stirred it. I didn't know that the basin was empty. I was so panicked that I didn't care about the basin and ran home immediately.

When I got home, I told my grandma what happened. Before she finished speaking, grandma was already laughing. She touched my head and said with a smile: "Silly boy, salt can't be washed clean like rice. It dissolves when it comes into contact with water." After that, she laughed again.

From this incident, I learned a truth: you must think twice before doing anything