Mr Twister,
Where have you demonstrated 'day in day out' that you could 'do the job'? In the training college?
Were you guaranteed a job at the end of your training or subject to achieving all milestones?
If you'd done a bit of research prior to entering the college you may have not taken the risk you did.
Choices mate & the Golden Rule.
Having said that, if the bank teller training expert had been subject to ANY KPI's that happen in the real world, things may have been done years ago to rectify the situation Mr Twister describes.