Please don't list this on a work's page as a trope. Examples can go on the work's YMMV tab.
Nightmare Fuel: Hook
While Peter, Moira, and Wendy attend the dedication of Wendy's hospital, Hook comes to the real world and abducts the children. This scene itself is fairly unsettling, but it really goes off the charts when the adults return to find the windows smashed, the power cut, and a gash in the wall. Upon going to check on the children, they find the housekeeper Liza, who has an injury on her forehead. When they ask her what happened, her response? "The children were screaming! THE CHILDREN WERE SCREAMING!"
The letter that Hook leaves behind is so nonchalant and so cordial, especially in contrast to the children's fear. It was like a party invitation.
Dear Peter, Your presence is required at the request of your children. Kindest personal regards, JAS Hook Captain
This parallels the original play where the Darlings come back home to find their children's beds empty (they left with Peter Pan). Of course Hook deliberately made their discovery as nightmarish as he could by thrashing the house, scraping the wall with his hook and knocking out the housekeeper.
Before Peter bursts in for the final battle, Hook is about to pierce Jack's ear for his first earring, how? By driving his hook through Jacks earlobe of course!
Gutless being put in a confined box as the other pirates start dropping live scorpions on him. And one pirate mocks him, "Boo hoo!".