Blacktop Boon docking. Although security past our RV that was parked against a retaining wall, they never informed us that slides weren't to be opened. After contributing more money to this casino during our second day, upon arrival to our RV we found a rules sheet taped to our door, stating slide out's weren't to be opened. We realize some of these Casino's may have problems. If we were advised of the no open slides as we set -up, we would have left immediately. Our fiver is difficult to use without the slides opened. Although we did receive a very nice baseball cap with the casino's logo, we could have saved $75.00 or more if we had checked into an RV park. We camped here in a Fifth Wheel.