Underhanded Tactic Used in a 10/20 NL game, Please Discuss.

[Nick Rivers]

First of all, I don't know what forum this should go in, so if it needs to be moved, go for it, but it happened in a 10/20 live NL game, so I'm putting it here. In the hand, the three relevant players are me, villain, and a big fish. I folded preflop, but, being a diligent poker player, paid attention to the hand.

The fish raised preflop, villain called on the SB, and they were HU on the flop. Villain check-called two streets then check-raised all-in on the river. I'm sorry I don't recall the stacks, but it turns out that isn't really important here. What is important is that I knew the villain was bluffing, or at least I was 90% sure, as I'd played with him several times and had a pretty good read on what his moves meant. So I just said out loud to the fish, "He's bluffing; I'd call it." After some deliberation, fish did just that, and won the pot. Needless to say, this did not go over well with the villain, who proceded to call over the floor and make his case furiously. I got a warning and agreed to not do it again, but after that, the fish had a bigger stack and the villain, who was a competent player (probably breakeven) went on tilt for the better part of an hour.

I realized that it was this poker room's policy to just issue warnings, warnings that never have teeth, and warnings that don't really accrue to an eventual refusal to let you play (assuming you don't get way out of line like sock the shift manager in the jaw or something along those lines). Sure, people don't like this sort of move, and it's poor etiquette, but it did generate some +EV for me by tilting a competent player and building up a fish's stack and, in all honesty, I would do this everytime the opportunity came up as long as I thought I could get away with it. Would you do the same? Is there a better way of acheiving the same end without possibly incurring punishment from the floor, something that could be used in a poker room even where you weren't familiar with their policies?