BITTERFOOT Ron “Bumblefoot” Thal says he was ‘angry and bitter’ when he left Guns N’ Roses   Blabbermouth —  Former GUNS N’ ROSES guitarist Ron “Bumblefoot” Thal says that he was so “angry and bitter and frustrated” before he left the band three years ago that it “was not healthy” for him to continue playing with the Axl Rose-fronted outfit. Thal never officially announced his departure from the GN’R, but a source confirmed to Detroit[…]