Makes perfect sense.
You just need to fix the permissions on the folders you create right inside the home folder. Get Info on those folders and set everyone to No Access and delete the Staff group. You will have to unlock the padlock on the permissions section before you can change those things.
Or, you can create your folders inside any of the default folders, Documents, Desktop, Movies, Pictures, etc.
Both Lion and Mtn Lion operate with the same default permissions.
Admin users do not need your "super secret password" to access your files. They can elevate their priviliges in the Terminal using their own password and see everything inside your home folder