In the book, it said something about the orcs wanting to "have some fun" with the hobbits, meaning something painful, I'm sure. I think Saruman was saying that he wanted them not only alive, but in full control of their faculties. Not alive as in "life support, brain technically dead but heart still beating" alive.
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If a kid asks where rain comes from, I think a cute thing to tell him is "God is crying." And if he asks why God is crying, another cute thing to tell him is "Probably because of something you did."
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