The stitches and likely the destruction held within. Alex would redo what that ferryman did, and Neil--

He trembles as his countenance practically radiates the very opposite of want. "Don't put me under," is the answer, rushed and edging toward panic. "I'll stay awake." Stay put and follow instructions, even if it would require the entirety of his efforts. It's better than another fucked up dream, dictating things that are better left behind in the murky swamp.