By God, you don't want to be on the wrong side of Joanna Lumley, do you?
She's displayed a masterful sense of political theatre and manoeuvring, having neatly boxed in the Prime Minister yesterday with her fulsome praise for the decisions that he was about to take. Today, she cornered and subdued Phil Woolas in the BBC's Westminster offices and seems to have corralled him into making policy on the fly as well.
If you get into a public argument with a national treasure like Joanna, then there will be only one outcome - and you won't be walking away the victor.
Truly, a masterclass in out-politicking the politicians.