Indeed there are schools that will not hire anyone they think is confident or doesn't need the job. They do love looking for someone they think is new, naive, easy personality or even better someone who might be desperate for a job. I knew of a guy who was scammed (robbed) very badly by a training center in Nanning. He made the mistake of telling a new school about it. They knew they had him over the barrel because he basically just admitted he was desperate, behind on rent, lost a lot of money. So they treated him accordingly and abused and skimmed his pay happily.