If some people are understandably confused, and there's no chance of damaging someone's ego, I'll chime in. If that turns out to be it, great, if it leads to an ongoing conversation during the game, even better. But under no circumstances am I going to engage the guy who goes to one game per year but knows everything about baseball, or the two annihilated drunken dudes behind me in the loud, drunken, confused discussion about why Tony Gwynn Jr. isn't playing. Of course if it's a Cubs fan it's another matter...