Sometimes the plot in Dogg's Hamlet, Cahoots Macbeth by Tom Stoppard, first produced in 1979, runs too close to home. But some background first:In Dogg's Hamlet, practically everyone speaks in Dogg, a guttural-sounding language that is a mix-up of actual words. A school in England is presenting a 15-minute version of Hamlet, which is spoken in a "foreign" language, English, and emphasizes the play's best-known …