system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] What if you were extremely scared of boggarts?

What would they appear to you as?
gpt
Whatever your mind pictured their true form to be. They don't have a corporeal form; they're a non-being that feeds off your fear. Once you're tapped out it sort of drifts off and takes a nap until the next walking dinner plate comes along.