Oh dear. Sienna Miller’s reputation as a “Good Time Gal” has earned the British actress an acid-tongued critic armed with a can of a spray paint. The Factory Girl star’s West London apartment was vandalized was vandalized overnight, in the wake of accusations that she is a homewrecker who broke up the marriage of Balthazar Getty.

Police are now on the hunt for the culprit who tagged the word “Slut” across Sienna’s wall in giant black letters.