Sentimental Value
My Grandpa was getting re-married, and for some reason insisted that the wedding be held in an ancient dilapidated hotel in western Pennsylvania – he grew up near there, so I guess it had sentimental value or something.
Well, this hotel happened to be adjacent to a creepy old amusement park, which was hosting a giant Halloween party the night of the wedding. The entire ceremony was marred by bloodcurdling screams and chainsaws, and moaning people spattered in fake blood were wandering outside the wedding hall the entire time.
Story credit: Reddit / smancash