I'm a journalist and was told this doozy by a woman I interviewed for a true crime story.
When this woman was a young girl, say 8 years old, she started to come down stairs at night to tell her father that there was a man in her closet. He tells her there's no such thing as the Boogeyman and sends her back to bed. This happens on and off for like a week. Finally, he gets frustrated and walks her back to the room and says, "I'll show you there's nothing in your closet" and goes to open the door. It opens an inch and then he feels someone slam it shut.
Turns out there really was a man in her closet. This guy was a perv who would come in to the house every night and stare at the girl from the closet while she slept. The dad kicked the shit out of him and the perv went to prison for many years.
I researched her story 20 years after this happened. The guy had just gotten out of jail again and no one could find him.