My baby brother

Last Sunday, I stayed at home with my mom and my little brother. My little brother is just 2 years old. What he can do is eat, drink, sleep and cry. I needed to look after him because my mom is busy with her housework. After that my mom went outside to buy some stuffs and she told me to take care my little brother. I played with him and did whatever not to make him cry. But he still cried louder and louder. I didn't know what to do. And I thought maybe he was starving, so I brought him a bottle of milk. However, he didn't drink it. When I checked the nappy, it was wet. ( why it was wet, did u know it? ^^) I changed the nappy for him. And he stopped crying anymore. (oh! what made u cry is that!!) When I went out to throw the rubbish, the door shut and locked. My baby brother is alone inside. What should I do now? I didn't have the key. My phone was inside and my mom wasn't here. My little brother was crying. I knocked on the door and said my baby brother stopped crying, I was here. Then I saw my neighborhood, uncle Paul. And I ran into him, '' uncle Paul, could I borrow your phone to call to my mom? The door was locked and my brother was alone inside. Yes, here it was, he replied. I called mom and asked, ''where were you, mom? I was locked out and the baby was inside, so hurry. Mom said, " OK! I'm on the way to home." I gave the phone to uncle, Paul and said Thank you so much uncle.
Maybe 3 or 4 minutes later, mom came and opened the door. My little brother was sleeping on the floor. He might tired of crying so he slept. Mom carried him to the bed and stayed with him.
Now I knew one more experience. I will not stay with the baby if there are only two of us.