I know a guy that read in the want adds that the Post Office was hiring mail carriers or somesuch and quoted a good hourly pay. He went to the post office, filled out an application, handed it in and quit his current job.

After a few weeks he inquired about his application. He was told that it was on file with a dozen others in case they had an opening. When he protested he was told that headquarters does that sort of thing when they have an opening somewhere that needs to be filled.