Collusive Entanglement

[Cerril]

It is in the 21C ed, invovling two people playing junk cards because one knows the other one has 'nothing' and the other knows the first has less than his 'nothing'.

We all see it when we call down someone, holding Queen high, with a scary board and take out the missed draw. (or for that matter make the crying call because it -does- pay off one in twelve or whatever, that time it does pay off we look like a genius)

Anyway, what that all comes back to is one of those fundamental rules not to force your opponent to play better when you could otherwise have him playing stupid. Don't give him odds to chase, don't bluff into the calling station... all that stuff. He's not playing smarter, but the quality (EV) of his play is substantially higher because you're playing as if he's better than he is.

Of course it may not make a -EV player +EV, but anywhere he improves against you, you lose.