John Regehr did a contest in 2012: Craziest Compiler Output due to Undefined Behavior: <a href="http:&#x2F;&#x2F;blog.regehr.org&#x2F;archives&#x2F;759" rel="nofollow">http:&#x2F;&#x2F;blog.regehr.org&#x2F;archives&#x2F;759</a><p>No launched missiles though.