You were originally meant to be able to leave New Vegas through the trading post Cass was at. It would trigger a "Yeah, **** all that noise" ending and the courier would go back to New Reno to bang whores.
Speaking of Cass, and whores. There was also a cut quest with Cass where you go out drinking with her and the king, pass out, and wake up married to each other. Shame they cut it because a well done get mad with it quest can add a lot to a character. See TW2 and 3 for some great drunken escapades.
Oh, I know a few Couriers who had a real weakness for certain whiskey drinking, bar brawling, red headed stick of dynamite...much to the chagrin of one Alice McLafferty and a certain "B!+ch who was forced to eat her hair", whom might have otherwise been ignored.