Tell me some 'behind you one shot horror stories'.

A man was camping in the woods. As he sat by the fire, he felt a cold breath on the back of his neck. He quickly spun around, and for a split second, he saw a shadowy figure that looked like a twisted human form. It disappeared as soon as he fully faced it, leaving him terrified for the rest of the night.

Once, a girl was home alone at night. She heard a faint scratching sound coming from behind her. When she slowly turned around, she saw a pair of glowing eyes in the dark corner. In an instant, the figure vanished. She never found out what it was.

There was a student staying late in the library. All of a sudden, she heard a soft whisper right behind her. She turned around but saw nothing. But the whispering continued, getting louder and more menacing. It was as if an unseen entity was taunting her, and she ran out of the library as fast as she could.