Less than a month after suggesting a reunion with his former bandmates was possible, Sebastian Bach unloaded on Skid Row and a fan wearing one of their T-shirts during his solo band show Tuesday night in Detroit. The fun started when a fan apparently yelled “Skid Row” during the show at Saint Andrew’s Hall. “Yeah, that’s the band that kicked me out. Yeah, killer,” Bach responded. “Fucking assholes.” Later in the evening the singer noticed a fan wearing a shirt featuring one of the four lead singers Skid Row has employed since Bach’s 1996 departure from the group. “I’m fascinated by this shirt …