The source code of *BSD contains the comment ‘Does this belong here?’

Tue Apr 15 21:39:14 UTC 2014

Lok Technologies , a San Jose, Calif.-based maker of networking gear, started out using Linux in its equipment but switched to OpenBSD four years ago after company founder Simon Lok, who holds a doctorate in computer science, took a close look at the Linux source code.“You know what I found? Right in the kernel, in the heart of the operating system, I found a developer’s comment that said, ‘Does this belong here?’ “Lok says. “What kind of confidence does that inspire? Right then I knew it was time to switch.”
 reference :http://www.forbes.com/2005/06/16/linux-bsd-unix-cz_dl_0616theo.html
The source code of  *BSD contains the comment  ‘Does this belong here?’ 		 	   		  