Here’s another example of a misplaced “only” messing up the meaning of an important-looking sign.
The photo was taken in a public area of Luton Airport. As a departing passenger, I was evidently in the wrong place, because the sign required “Passengers Only Beyond This Point” and I was not beyond that point.
What they really meant was “Only Passengers Beyond This Point”. For greater ease and accuracy, they could have simply written two words: “Passengers Only”.