Reverie, dreaming, and memory threaten to immobilize the Petterson protagonist, to take him out of time, to set him drifting in deep waters.

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Guinea worm disease is usually non-fatal, but causes crippling pain and can immobilize its victims from being able to work, farm and function.

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The Uprightsleeper looks like a neck brace the kind worn to immobilize the cervical spine after a traumatic injury (although it "makes no medical claims") and facilitates sleeping while sitting straight up.

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Exhausting the AdBlue will immobilize the vehicle.

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