The Others

Heyy, it was about 5am in the morning of 21st April and its a thursday morning. I was awake becouse of my alarm but it was too early for me to take my morning shower. so, I just lying down the bed thinking of the pain in my haed that I'm having. My eyes was closed but my mind is wild open. Suddenly I heard a paper knife sound. It sounds like there's someone who's playing with it. At first I thought it was my dream untill I heard it one more time minutes after that. My mind was thinking that my dad is doing his work so I decided to see on him. As I opened my door, I was suprised to not see what I wanna see. My dad wasn't at me or my lil brother's studying table where I thought he was. Then, I checked the living room. As I was at the half of the staircase I can see that the light was'nt even on. So of course my dad isn't downstairs. Later on I decided to wake my mum as it was nearly 6am. I knocked on their door. Then I knocked again untill my mum answered it. My heart was saying that, if my dad is doing his work inside their room, he would be the first to answered the door. Clearly, there's no one playing with the paper knife.
So, who was it ?



After I got back from my tution class that finished at 9pm, I slept in the car on my way home cuz I'm deadly sleepy and hungry at the same time. When I reached home, I help my dad to download our groceries from the car and bring it straight inside. After that, I had my dinner. It was OTAI burger and it was supremely delicious ! Then, I helped my mum to wash the dishes. When I'm washing all those plates, cups, etc I heard someone footsteps that running in place ( berlari setempat ). That couldn't be my dad's because he's still eating. And it wouldn't be my mum's because she's at the living room talking with my neighbour. If it was my brother, it couldn't be him because he's inside my parents' room. Their room is above the living room. If the sound is from my brother it could have been from my room or his. The sound that I heard is quite loud.
So, who was it ?