I usually back the fish when this happens. By backing the fish, I mean getting the rock to start talking to me. Jump in and yell "POT ODDS!" or something. I don't want to leave, I just want to save the table. So maybe I insult the supertight guy a little bit. Talk about how he doesn't play postflop well and thats why he plays so few hands. Whatever it takes to get the fish feeling better and the rock on a little tilt.