I never call for a character's background. Mine never have them unless it is requested. I only ask that you have one in mind.
Anyway, that aside, I know hypnosis, and even in a magical setting it has its limits. The subject can never be made to do something; the subject must choose to do so. A good person could not be told to rob a bank; however, if they believe they are on, say, a game show, and all they have to do is open a vault to win the prize, then they will. It is all in the wording. But, even in a magical setting, don't think you can overdo the mind control thing.
As far as my magical scheme, it would qualify as a cross between casimir and opiate magics. You can look those up in my tome if you want (Link in post 101). It's not that big a deal, but I always want to avoid OMUS(Omnipotent Magic User Syndrome) when possible.