Background Information They are advised "to look up to a light in the window if someone nearby is making you feel uncomfortable and pretend someone is waiting for you and is watching out for you. In some neighborhoods large eye" signs are posted very conspicuously to indicate that the place is closely watched by police. But just as the author of this article says, no matter what precautions (S]y) you take an assault or mugging could happen to you anywhere, anytime. "Security is an illusion(AJB)and what you can do is to trust yourself only to luck"Background Information They are advised "to look up to a light in the window if someone nearby is making you feel uncomfortable and pretend someone is waiting for you and is watching out for you." In some neighborhoods large "eye" signs are posted very conspicuously to indicate that the place is closely watched by police. But just as the author of this article says, no matter what precautions（防范）you take, an assault or mugging could happen to you anywhere, anytime. “Security is an illusion（幻想）" and what you can do is to trust yourself only to "luck