Well that's rubbish, isn't it? Of course most hair-wearers are going to be concerned about being busted and confronted in public about their hair, like you were. That was embarrassing for you, and potentially it could have been a lot worse. Even if you like this woman personally, you need to give her a wake-up call that if she is cutting in men's hairpieces the aim is for the client to walk out with an undetectable unit. If she doesn't buy into that proposition she is in the wrong job.