[Khabbi]

It seems pretty clear that Player A was just counting his chips. He was probably weighing the percentage of his stack that might take a hit if makes a bet so he was stacking them seperately from his stack. We all see players do this all the time.

It seems to me that Player B was trying to shoot an angle here or else he had the nuts and couldn't control himself. He probably cost himself that bet by just not being patient and protecting his action.

At best you can give Player A a warning and the rest of the players in the game. Institute a rule as of now that chips ahead of cards constitute a bet then there is no confusion next time.