Pierce Brosnan Smacks a Pap

TMZ reports the L.A. County Sheriff's Department is investigating Pierce Brosnan for beating a photog in Malibu.

Photographer Robert Rosen says Pierce was at a Malibu mall with his kids, when Rosen began snapping photos. Rosen claims Pierce said to him, "Why don't you get a real f**king job." Rosen says he then started complimenting Pierce on his Bond roles. Yeah, yeah.

Pierce allegedly said, "Why don't you f**k off, mate," and punched the guy in the ribs. What? Sweet Pierce...no way. A witness says the pap reacted by kicking Pierce in the stomach. Don't poke the bear!