Monsters are smarter than humans.
If this weren’t true, why would humans be so afraid of them?
Monsters believe that terror is a game.
They like to flaunt their intelligence by toying with their prey. Sometimes they leave behind little clues to see how long it takes humans to discover them. They also like a big reveal.
This helps humans accept their fate much easier.
When the goblins are cutting you up and serving you on a platter, you can’t say they didn’t try to warn you.
All you can do is feel stupid for missing the all the signs, and be eaten.