A sign at Indian Run Falls in <a href="https://en.wikipedia.org/wiki/Dublin,_Ohio" class="extiw" title="w:Dublin, Ohio">Dublin, Ohio</a> advising people foolish enough to jump into a Waterfall that <a href="https://en.wikipedia.org/wiki/Natural_selection" class="extiw" title="w:Natural selection">natural selection</a> doesn't discriminate.
<a href="//commons.wikimedia.org/wiki/User:Sixflashphoto" title="User:Sixflashphoto">Sixflashphoto</a>
<span class="int-own-work" lang="en">Own work</span>