MingusKingus said:
What about things like brain drain which don't necessarily make someone obedient?
I mean, it's always arguable, and this is all my personal point of view (people tend to have varying criteria anyway), but I would say brain drain doesn't count unless there's some replacement either. Same with lobotomy. The way I see it is, "mind control" is about "control of the mind". So, you can have an empty mind, or a lack of mind, or an absence of mind, but if there's nothing and no one assuming control, then I don't consider it mind control per se. Possession is an interesting fringe case, but because the original host's consciousness is replaced, I'd still consider it mind control. EDIT: Also, I didn't mention emotional control like love potions and stuff - I would still categorize it in the same kind of vein as mind control, if only because there's an exterior modification of someone's attitude and behavior towards someone else. It might not be exactly the same, but it's close enough that it's often related.
Now all that said, if a situation like brain drain can be spun so that an outside party can still benefit from it, then it's probably debatable. But I wouldn't consider it "straight" MC in any case.