There is No Practice Test in the Business World

It is a vivid wake-up call for many new hires to realize that the business world doesn't have practice tests.  Every day at work is a test of sorts. Once hired, it is expected that we will perform the job that we were hired to do.  Though there are no official retests in business, our best option, if we make a mistake, is to admit it to our boss, state what we've learned from the mistake and adapt steps/procedures to avoid future problems.