overuse of hypnosis?
Hypnosis does not work that way. You cannot just walk up to someone and hypnotize them like that. I watched a hypnotism show once and they cooperated and it took a while. Late in the show the host stood on a young lady's abdomen while her feet and head were supported by chairs it was amazing, something I will never forget.
Yes it was a fantasy and all but they really overdid the hypnotism thing. Seems other magicians are immune in this fictional universe? Maybe they train their minds to reject it?