Mid-City <a href="//commons.wikimedia.org/wiki/New_Orleans" title="New Orleans">New Orleans</a>: Gate with sign "NOTICE: KEEP GATE CLOSED AND LOCKED"; there is no fence on either side of the gate (nor is the gate locked).
Flickr photographer <a rel="nofollow" class="external text" href="https://www.flickr.com/people/editor/">Editor B / Bart Everson</a>
CC BY 2.0
Flickr photo <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/editor/3604566624/">Notice</a>