Holding a fetus hostage in Devil’s Woman
Though not nearly as offensive as Category III's more famous shockers, Devil's Woman contains one ridiculous and repulsive scene worthy of a jaw drop.
Diary of a Serial Killer (1995)
Diary of a Serial Killer is only interested in getting two things out of its audience: titillation and revulsion. It achieves both with admirable success.
The Haunted Cop Shop (1987)
How deep did Wai's involvement run? I don't know. He may have written a really good script that was mostly ignored on set. Or, maybe, and I like think this is true, Wong Kar-Wai wrote a film where the protagonists kill a dog.