I am a strong believer in the Dilbert Test: if three Dilbert strips in a row are so familiar that they are no longer funny, it's time to get a new job.
It would be funny if it didn't hurt so bad... And at least 1 in 10 Dilbert comics depict real events in my life.
But seriously... why don't people (and project managers, specifically!) understand the basics of planning. Use Cases -> Requirements -> Wireframes -> Coding & Design -> Testing -> Deployment. You'd think that anyone would be capable of understanding these steps, if it represented the core skill for their job.