Please don't list this on a work's page as a trope. Examples can go on the work's YMMV tab.
Nightmare Fuel: Guards! Guards!
When Lupine Wonse is so driven to madness by the dragon that he asks the head of the Assassins' Guild for help.
"The assassin shivered. Why him? As far as he could see, there was only one kind of help he was qualified to give, and very few people ever asked for it for themselves... He wondered what was happening to Wonse that made any alternative seem better."