Candidates often turn up in person to the interview with their new manager, but send a double to the aptitude test which is only supervised by HR staff. Because

Candidates often turn up in person to the interview with their new manager, but send a double to the aptitude test which is only supervised by HR staff. Because HR often get bonuses based on how many new recruits they bring in, they often skip ID checks and turn a blind eye to anything suspicious they see.