Then I suppose if that's the case, sitting in row 20B on somebody's RJ constitutes "flying with" somebody. Also, taking a Citabria up with somebody's Piper Cub and doing some formation is "flying with" somebody. What about being a crewmember "with" somebody at a regional and interacting with them in the lounge couple with being 4 in trail on final a hundred times with them...that too? Just curious.