Playing drunk: Now, what was I shaying?
Britain's stages are about to be invaded by drunks. What's the secret to playing a tipsy character? And who is drama's biggest boozer?Drama frequently holds up a mirror to our drinking habits: think of the booze that casually gets put away in plays as diverse as Pinter's Betrayal, Chekhov's Uncle Vanya, or anything by Tennessee Williams and Sam Shepard. Actors are routinely required to express joy, cry real tear…