Rush at the University of Central Oklahoma is "messed up" (to put it lightly) at least for fraternities. Prospectives go through Rush with a "yellow card" and must obtain the stamp of every fraternity house on campus. Most houses require that you listen to their speal or something to get their stamp. After the prospectee fills out the card they can choose the house they want to sign and then go sign a bid card.
That's how it's SUPPOSED to work. Some houses will sign you before you've filled out your card and then group you up with lots of other guys that go house to house together with clear instructions not to listen to anyone
I believe IFC is looking at overhauling this system though...