No, that's not a sexy cop/sexy cat couple's costume on Brandi Glanville at the Casamigos Halloween party, that's a real cop!

The former RHOBH star seems to cause trouble wherever she goes and the annual Halloween bash hosted by Cindy Crawford's hubby Rande Gerber and his business partner George Clooney was no exception.

On Friday night, Brandi was accused of helping a pal bust the lip of her ex-boyfriend at the party. Glanville claims she was trying to break up the fight but the D-list actor Kobie Randolph told TMZ that Brandi was in on the dust-up. Randolph claims he was hit with "12 uppercuts ... like a boxing match."

We smell a lawsuit coming on ...