What a wonderful turn of luck to enjoy biz-first seating (757-200) plus the new AVOD on my trip from IAH to SFO. FA service was equally wonderful, though I suffered the consequences of being in the last row and hence without a dinner choice :-(. The cup of soup and shrimp salad barely quelled my hunger, but thankfully the sundae arrived to leave me sated. Unfortunately, the overall experience was terribly marred by the passenger sitting next to me, albeit, thankfully separated by an aisle. It is time I pen a letter to Continental and plead an update to their flight rules. In one of the very nastiest experiences I've ever endured on a plane -- and a long flight no less -- the man next to me (again, in business first!!!) held a cup in which he was spitting Skoal(tm) (aka 'dip' or 'spit tobacco') for the duration! Airlines, in my opinion, need to raise the bar from "no smoking" to "no tobacco products" period!!! It was incredibly gross. And, yes, the flight attendant was also aware of it and shared my disgust, but said she couldn't do anything about it.