New user ignores stop inherit permissions

[jabadger]

Whenever I change a users permissions to the parent folder of a large group of folders, if there are child folders set to NOT inherit permissions, the user who I just gave parent folder access, also gains access to the folders I set to not inherit.

Shouldn't the user not have access to those folders until I specifically add them? I thought that was the whole point for not inheriting permissions?

[#2]

Never mind - I have to go into Advanced Settings when adding the user and Un-check the box that says "Share everything in this folder, even items with unique permissions." Doing it from the friendly GUI defaults to blowing through the inherit behavior.