I think the casting agents cruise the malls looking for these self-centered goofballs. We in the U.S. are torn -- we're thrilled that the rest of the world has the chance to laugh at Parasite Hotel, but we're afraid that you will judge Americans by these lunatics.
Here's a link to one of our discussion threads. (My humble summary is in there as well!)
http://community.realitytvworld.com/boards/DCForumID48/314.shtml
Your Official Croupier at the Pair-Of-Dice Hotel