The road to the top -- or even the middle -- is often paved with excrement. Today we inaugurate a new semi-regular feature: Resume Redux, a look at the credits our favorites stars may well wish we'd forget. This political wag once worked with science fiction siren Adrienne Barbeau. (AP) Before he became a fixture of the liberal left, talk show host Bill Maher was best known (or not) for parts in blockbusters of the B-movie circuit (today we call that "straight to DVD") and guest spots on TV shows from "Max Headroom" to "Murder She Wrote." What better way to prepare for his eventual career of political punditry than sharing screen time with Mr. T and Shannon Tweed? Bill Maher's Resume Redux: -- "DC Cab": This 1983 classic is actually a must-own for any self-respecting Mr. T fan. Co-starring Garey Busey, Paul Rodriguez and Irene Cara. (Catch a brief...