I know in this case it's played for humor, but I wonder if there could be a tag for characters "walking into the wolf's mouth". Not quite consensual, but rather, the person knowing that going near a place or person will likely get them hypnotized "against their will", and that's precisely why they're going there. But then again, I'm not sure how many works are there with that concept. It would be cool to see more people doing something like that.