Stice comes to Lyle: even the supernatural is first a threat to the Show
He’s got promise, the Staff say; he’s got a quite legit shot at the Show when he graduates. Which he does not want to mess up with any sort of telekinetic or somnambulistical shenanigans.
Context
What actually frightens Stice, stated plainly: what actually frightens Stice about the possibility that he's telekinetic or sleepwalking is that it might cost him his career. "He’s got a quite legit shot at the Show when he graduates. Which he does not want to mess up." The order of alarm is pure the-body-tennis — before it's metaphysically terrifying, the uncanny is a professional liability, a thing that could "mess up" a legit path to the pros. The body's promised future is the frame through which Stice even experiences the paranormal.