Presidential candidate Robert Haines, who showed up in the press center, wearing a cowboy outfit has been forcefully removed from the press center. When leaving he gave a a thumbs-up to which a reporter gave him a thumbs-up.
For more information about Haines go here: http://www.gwu.edu/~action/2004/morec/haines.html
For more on the Haines story go here: Longshot presidential candidate removed from press filing center and here: Obscure '08 hopeful escorted out of building