The best ragequits I've ever seen are all from the same guy. Shortcut.
1. I'm not quite sure what happened, but he said he was a good builder and we asked him to prove it to a few of us in my server. He was loading something, then randomly quit halfway without saying anything. When I asked him about it he said something like he got hungry which is complete bullstuff because an honest courteous person would have at least said something before leaving.
2. He returned to show us one of his builds. And our good friend Ace was in the server, he pretty much went all out and rated it as bluntly as it could get. He cleared his bricks and then left the server.
3. He app'd for KC, his app being an AT-AT. It wasn't terrible, but it was odd and had no interior. He also had help from Jesterd. In the heat of getting rejected he just left without saying a word, typical.