I swear anything this guy does is priceless!! Will Ferrell -- sporting a nicely manicured mustache -- threw on a Staples Center usher uniform ... and went to work on the court. ... keeping the floor safe from basketball hooligans. At one point, Ted (Will) put Shaquille O'Neal in an arm bar -- and escorted the big guy off the court. Cue up Anchorman II!!! I'm ready!