This is kinda a compilation of all the Detroit rumors I have heard over the years. I heard one Cobo Hall show wasn't up to snuff and some people walked out (either the 72 or 73 tour). Also, if you believe Richard Cole, Bonzo said he never wanted to play Detroit again after the power kept going out at a Grande Ballroom show. It must not have been too bad as they had two shows scheduled at Joe Louis Arena for the 1980 tour.