Just got back from a vacation in San Francisco (full trip report coming soon) and I had an interesting experience on Flight 430 last night but didn't want to start a new thread for it.
I was in 15E, my S/O in 15F. Sitting in 15D was an elite (silver). He was a younger guy, probably younger than me. He didn't say a single word the entire flight (to us at least). He used both armrests and listened to his iPod at much too high of a setting. Well, about an hour into the flight and he takes his dress shoes off. No big deal. Then he proceeds to cross his legs and touch my tray with his feet...

As if that wasn't bad enough, it was burger night and they had some weird pepper salad dressing. My S/O and I definitely passed.
So this guy gets pretty much plastered on the plane. I counted four gin & tonics within an hour and a half and by the time we got off the plane, he had had six. Just an all around weird flight. There was lightning hitting the ground all around IAH when we touched down which was neat to watch though.