The playwright Richard Bean has recently become the toast of the National Theatre – with his journalistic comedy Great Britain following the smash-hit farce One Man, Two Guvnors from the South Bank to the West End – and now a smaller London venue usefully and enterprisingly takes us back to the start of this flourishing career with Toast.First performed at the Royal Court Theatre in 1999, this was Bean’s first professional play, as he attempted to give up his then career – of stand-up comedian – by dramatising one of the first jobs he ever had: working on the night ovens in a bread factory in Hull.Now revived by Eleanor Rhode at the Park Theatre in Finsbury Park, north London, Toast is, like most artistic debuts, visibly indebted to an inspiration: plays by D