I had some time on my hands the other night. I had to stick around for a disaster recovery test, and my only job was to perform some simple DNS changes. After the changes were made I had to wait around for a while while our QA team tested stuff, then when we failed back, same thing. Lots of waiting around for this guy.
Anyhoo, I ran into these on the internet and thought they were funny. They pretty much poke fun at the big names in Linux, though I didn’t see one for CentOS. You could technically take the Fedora one and replace CentOS for Fedora though.
Here they are, I hope they give you a good chuckle (click on each one for full size):