Hired a black guy once whose last job was a supervisor.
He proved to have no idea how to perform the work he
applied for. After a week or so on the job, flailing and failing,
he claimed to have injured his back while
stepping off a skid onto the floor. Since he was still
in the probationary period, he was fired.
Stereotypes wouldn’t persist if there weren’t reasons
for them. They can save a lot of time.
General stereotypes are often wrong which is why people get so upset, however personal stereotypes are off the charts predictive. Someone that purposely injures themselves at work will be trying the same stunt for the next 20 years until they hit the jackpot.