(Idea suggested by GalaxyBunBunBrit)
Hailey had been acting a bit weirdly lately. She would chuckle at really random things or things she shouldn't necessarily laugh at. Hailey would talk to herself, which naturally was normal, but she was doing it more lately. You could even hear her at some nights, singing in her room to creepy or sadistic songs while giggling. Half an hour ago, she had ran out of the house, out of no where. Currently you were looking for her. You looked through some alleyways.
When walking down some of the alleys, you could hear feminine giggling. Whenever you heard the giggling, you would call out but get no response. You walked down an alley and saw blood on the walls. You heard a splash and looked down. You saw you had stepped in a small pile of blood. Shivers ran down your back and you wiped the blood off on the ground. You continued to walk. Suddenly you were pinned against the wall. You closed your eyes due to the impact.
When you opened your eyes, you saw Hailey with an insane grin on her face. She had blood on her face and she was tightly holding you against the wall just under your throat. In her free hand she held a bloody sword. Hailey giggled, bringing the sword next to you and just barely skimmed your face with the blade. You stared at her. "Hailey, please stop! You're scaring me!" You exclaimed. Hailey showed a bit of hesitation but a second after, the grin she previously had on her face returned. "God damn right, you should be scared of me!"