I think we can do this differently. My Idea is as follow:
- Show the website with only fake content (similar style and layout with the real one).
- User needs to do certain interaction with the content to trigger step3(e.g. put XYZ in a textbox or have clicked a combination of Checkbox or RadioButton, etc.).
- With step 2 satisfied, when user hangover certain tiny point on the page (right hand side), the page will display its real content. And the content will remain if the mouse is over it.
- In an emergency/Panic, user can just move the mouse away from the real content, and the content will be changed back to the fake one.