PROTIP of the Day: If you're planning on robbing an LA motel, make sure it isn't full of mixed martial artists in town for the World Jiu-Jitsue No-Gi Championship.
Luis Rosales failed to heed this basic rule before heading into the motel at 300 N. Vermont Ave.
After a clerk handed Rosales the contents of the cash drawer, he followed the robber out of the office to warn two guests