In Dune Messiah, we learn about the Tleilaxu practice of giving a victim of their plots a chance to escape- if they can find it.
At the end of the book:
Muad'Dib looks through his son's eyes, kills Scytale, and largely defeats the conspiracy against him. However, even by the prescient standards of Dune, It seems hard to believe that this was the intended method of escape.
So, what means of escape did Scytale intend to give Paul? Was it simply to turn away from his path and embrace the horrific alternative futures?
I can't believe that his escape from the ghola counts, since the larger plan was still in place, and the Tleilaxu actually mostly wanted the ghola to "fail"...