Thoughtful and funny revival of a familiar classic Pinter wrote The Dumb Waiter in 1957 (although it wasn't seen in London until 1960) the year before The Birthday Party received its notorious première at the Lyric Hammersmith. When a friend described them both as political plays, about power and victimisation, the playwright readily agreed. And it is this aspect of the 50-minute, one-act piece that director Jeremy …