6-7 years ago, a co-worker was doing some work on a server that we were phasing out. It wasn&#x27;t being used for anything of critical importance, so a Jr level person was permitted to have root. He was actually my colleague and equal on the org-chart but he had less experience with *NIX administration.<p>He was copying directories to the new server and deleting them when he was done. Well...<p>I don&#x27;t remember the sub-directory he had just finished copying but when he went to delete it he typed in &quot;rm -rf &#x2F; SOMEDIR&#x2F;SOMESUBDIR&quot; and hit enter.<p>He almost immediately realized what he had done and hit CTRL-C but by that point the damage was done. Our boss had access to the previous week&#x27;s backups and since the server wasn&#x27;t critical, he just rebooted it and restored but we had a good laugh about it.<p>The next day, I made a paper airplane and on the side I wrote in red Sharpie &quot;Linux Air&quot; and then &quot;rm -rf&quot; inside of a red circle with a line through it and taped it to the top of his monitor.<p>He was a good sport about it and left it up for a couple of months.