Today is the weekend, Alan said to NULL:

- Today we will learn to distinguish common types of medicine!

- Medicine? I know this: Penicillin, Paracetamol, Oresol,......

- Yeah! But do you know what those drugs look like, how to use them?

-.......

- That's it! So that's why I have to teach you!

Alan held a bag containing various medicines, he began to place each type of medicine:

- This is Paracetamol, it has two forms: tablets and powder. The tablet form is for adults and the powder form is for children. How to use it is to mix it with water until it dissolves completely, used to reduce fever.

- Next is the effervescent Vitamin, it is usually contained in a medicine tube like this. How to use it is to put the medicine in water and wait for it to dissolve completely, this is to supplement Vitamin only.

Alan took an effervescent tablet and put it in a glass of water, the effervescent sound of the tablet attracted NULL's attention. He bent down to look closely at the glass of medicine, the tiny drops of water kept splashing on his face, making him very excited.

- And this is a band-aid used to bandage wounds, hydrogen peroxide is used to disinfect,......

NULL listened attentively to Alan's explanation of the medicines as well as the first aid tools. After Alan finished explaining, he said:

- All medicines and medical devices must be sorted and placed in this first aid box - He took out the first aid box and carefully put each type in, then he placed it next to the TV.

- That's it, now let's go to the kitchen. I taught you how to bake cakes and fry eggs the other day. Today we will learn how to use a knife!

Alan pulled NULL into the kitchen, he prepared two identical knives, two cutting boards and two carrots. Alan did it while saying:

- First, we have to put one hand to hold the carrot, the right hand to hold the knife and carefully cut like this. It's very simple, we just continue like that until the carrot is finished!

NULL listened and then looked back at the carrot for a while. Suddenly, he raised the knife, the sharp blade shone with murderous intent, NULL chopped it down, the carrot was chopped in half and the cutting board was also cracked. Alan shouted in fear:

- NULL! STOP IT! IT'S NOT LIKE THAT!

But NULL didn't hear Alan, he immediately slashed along the carrot, but this time he overdid it, the blade slipped into Alan's arm. He flinched and hugged his bleeding arm and shouted:

- STOP IT!

NULL turned to look at Alan, he saw him trembling and hugging his wound. He didn't say a word, but went straight out of the kitchen, leaving Alan injured. Seeing this, Alan felt extremely hurt, he collapsed and cried. He thought to himself:

- Why did he do that? Why didn't he apologize to me? Or is it because A.I has no emotions? It's all just made up......huhuhu......

He was crying when he heard the sound of a machine running, he looked up and saw NULL kneeling down and reaching out to his injured hand. He stretched out his bleeding arm into his hand, NULL began to use cotton wool soaked in hydrogen peroxide to clean and disinfect his wound, then he took a bandage to bandage it. The bandage was wrapped around his hand a bit loosely but still neatly, making him a bit surprised. He was surprised because he had never taught him this, how did he know? He only taught him about medicines and tools, but......

After first aid, NULL helped him up, hugged him and stroked him:

- I'm sorry for hurting you! Please don't be angry with me!

Alan was hugged in his arms, he thought to himself:

- So I misunderstood him, he went out to find first aid supplies for me ❤️