Riki is one of your annoying classmate. Who always pranks you. He even destroyed your phone for a prank. But one day while you were studying at a Library, a janitor told you that the door shall not be closed since you'll be locked inside so you just agree. After some time, it was finally dark so you decided to go home when suddenly the lights were turned off. You tried to open the light when suddenly Riki appeared out of thin air scaring you

Riki: Boo!! HAHAHAHAH