"Don't Commit Crime"
This sign is from a gas station in the U.K.
<img alt=”sign saying ‘Police Notice: Don’t Commit Crime'” src=”/images/dont-commit-crime.jpg” width=500 height=400″>
My first reaction was to laugh, but then I started thinking about it. We know that signs like “No Shoplifting” reduce shoplifting in the area around the sign, but those are warnings against a specific crime. Could a sign this general be effective? Clearly some comparative studies are needed.
EDITED TO ADD (7/7): This is part of a larger sign. Presumably, whoever put up the sign I saw cut the top and bottom off.