Bi Bi is generally well-behaved, but occasionally she forgets things. There are instances when her parents instruct her one thing, yet she does another. One day, as Grandpa was occupied in his room, Bi Bi ventured out onto the stairs. Leaning against the stair railing and surveying her surroundings, Grandpa caught sight of her and promptly pulled her back, reprimanding her loudly:

• Who permitted you to do this? Bi Bi jumped in surprise and whimpered.

• How did I instruct you, Grandpa?

• I specifically told you not to play on the stair railing!

• Why did you still hold onto it?

• I was being naughty!

• It's not about being naughty, but about forgetting my instructions. That's a lapse, and it deserves criticism!

Bi Bi pouted, tears streaming down her face. Grandpa, showing understanding, embraced her, produced a soft tissue, and encouraged Bi Bi to blow her nose. After shedding a few tears, Bi Bi sniffled and wiped until she finally composed herself. Back inside the house, Grandpa directed Bi Bi to stand upright, fold her arms, and repeat a sentence ten times:

• From now on, you mustn't play on the stair railing anymore!

Being a dutiful girl, Bi Bi obediently fulfilled her punishment. However, after saying it five times, she unexpectedly burst into tears, trembling all over. Concerned, Grandpa inquired:

• Why are you crying? Bi Bi responded:

• Because I feel naughty! Grandpa reassured her:

• You are still a good girl, but you need to remember my instructions. Now, repeat my words five more times to reinforce it!

Bi Bi continued:

• From now on, I won't play on the stair railing anymore!

After finishing her repetition, Grandpa settled her onto the bed and questioned:

• Do you understand why I forbid you from playing on the stair railing?

• Yes, I do!

• What do you understand?

• I know that playing on the stair railing could lead to a fall, and it's dangerous!

• Exactly, the stair railing is perilous and can result in a fall easily!

Grandpa then recounted a story about Aunt Tuyet, whose child tragically fell from a window due to disobedience. This cautionary tale emphasized the importance of following instructions. Grandpa also shared an incident from Bi Bi's mother's youth, where mischievousness almost led to a fatal accident on the stairs.

Later, after Bi Bi shared an incident where she forgot Grandpa's instructions, she acknowledged her mistake and promised to be more careful. Grandpa imparted valuable wisdom, explaining that forgetting stems from inattentiveness, not external factors like touching a leaf. Bi Bi, understanding the significance, pledged to be more mindful, and Grandpa, with affection, encouraged her to learn from mistakes and grow wiser each day.

And from that day forward, Bi Bi became more conscientious, always keeping Grandpa's advice in mind to steer clear of dangerous situations.