Damn it, Janet! The ultimate in cult musicals returned to the Wolverhampton Grand Theatre last night. Yes I can only be talking about the ‘astounding’ Richard O’ Brien’s Rocky Horror Show, a musical like no other, with an audience who heckle virtually every word and enjoy every single mucky minute. If you’ve never seen it before, it’s a shock to the system, one that leaves you laughing out loud and gasping with shock. In short, It’s a hoot! Based on those late night double features that played at cinema’s during the 1950s, The Rocky Horror Show is a pastiche on B Movies of the Science Fiction and horror variety. Squeaky…