system
Given the following post, respond as if you're commenting on Reddit:
human
[Supernatural] If a demon put his arm/hand/leg in a devil's trap, but not rest of his body, would he be able to pull his limb back, or would the limb he put inside the trap get stuck?
gpt
No.

There are several instances where Demons walk in to a demon trap only to notice that it caught them, only once they try to get out of it.

If the trap would capture them bit by bit as they move in, they would notice some resistance (swinging your arm when walking etc.) as they walk in to it. So the trap 'snaps' only once the demon is completely past its border.