This same effect can be achieved by merely switching stance. Stay in a right lead for a while, giving the opponent time to plan an attack to all the juicy targets on your inside. Then, just before he attacks you switch stances to left lead. Now his preset targets are gone and he suddenly faces a new tactical situation to ponder. Using this, and the tactic you described, a few times can be frustrating to the opponent and throw him off his game. He may not even know he's being led and manipulated. Many wives are naturally skilled at this.