Creepiest Shit In Your Childhood

[OriginalUsername]

Creepiest shit in my childhood?
There used to be an abandoned office near the home of grandparents. There were stairs at the back leading down to a locked door. The window next to it was all broken en dusty, covered in cobwebs. Too dark to look inside and I was too scared to look inside.
That shit gave me nightmares..

Edit: I'll make a photo as soon as I'm there