Okay, so I’m borrowing this from [tag]Stephen Wilbers[/tag], who writes a syndicated column on English grammar and mechanics. This is a story of wordsmithing gone awry, as you’ll see.
Right after World War II, Sears developed a device to turn a bathtub into a shower. A hose went over the faucet, which connected to a shower head that you attached to the wall with a couple of screws.
The copywriter came up with this tagline to emphasize ease of installation: "Two screws and you’re ready for a shower."