Frank works as a cashier for a department store

Frank works as a cashier for a department store. He operates a teller window that takes payments, cashes checks, and answers questions for customers. While riding his bicycle one weekend, Frank has an accident. After six weeks of recovery, Frank returns to work but is unable to stand. His supervisor claims that Frank is required to stand at the cashier’s window and, if he is unable to do this, will have to transfer to a lower-paying job.