Chinese title help

[Mike Thomason]

Does anyone have an idea what "Li Sau" (from Mandarin) translates as? Have managed, with the assistance of my Mandarin speaking partner, to translate out the titles of the stories that make up the anthology film NIGHTMARE ZONE, but she was unable to give me a direct translation for the above. Well, other than "Li = leave" and "Sau = disturb" - so..."do not disturb"? Any help would be appreciated.