If the text is displayed in the browser as actual text, an image, or another method, it can be copied. Maybe not by the general copy/paste method, but by opening notepad and manually retyping it.
If content is display in the browser, it can be stolen. Nothing can be done to stop content from being stolen.
Unless you do somethings that could be perceived as illegal and thrown in jail (i.e. eliminating the user after the content has been viewed).
If only it was as simple as...
If Content.View = True then
If View.Timer.Seconds = 60 then 'User has 1 minute to view content
User.Delete = True 'Eliminate user
User.Delete = False '*sigh* Let user live
There is that pesky bug about repeat business...