Every so often (if I am are truly lucky) I get to experience a piece of theatre that leaves me totally awestruck. Last night, at Birmingham’s stunning Rep Theatre,  was just one of the those nights. The Melting Pot and Birmingham Rep’s latest production of The Curious Incident of the Dog in the Night-time, a play based on the novel by Mark Haddon, is one of the most astounding pieces of theatre I have ever watched. With a star-making central performance by the astonishing Alex Keenan, and an ensemble cast that would be hard to beat, I left the theatre both laughing and crying about what I had watched. The…