Those of you with dogs in your lives might know this maneuver. To communicate the pressing desire to go for a walk or perhaps to get fed, it can be very worthwhile (and fun at the same time) to steal any item highly valued by the humans. Sophie knows that the dishcloth is one of these items (how i love doing the dishes!). By flagrantly waving the stolen item in front of us, she then allows us to chase her around and around the house...until we catch her.
She has learned over the last five and a half years that this method of communication is incredibly effective.
In fact, it probably works 99.9% of the time.