As played, if V calls and checks turn, I think we can always bet. If it's a scare card we have some chance of taking him off of a 1 pair hand, if it's not then we're making him pay for draws. He can't have anything too potent if he plays it that passive on this board. If he does, we make a note and start searching for him at the beginning of our future sessions.

I have this idea that making a small error against a fish isn't too bad because we end up getting some of that money back by continuing to play against them. It's a minor concept online, because people get up and leave all the time without notice, but I started a thread about it a long time ago: here. Pretty much everyone but spoon misunderstood what I was talking about.