The modeling of human motor behavior has followed the trend in other scientific disciplines. From purely biomechanical models to symbolic computer programs the recent development has incorporated novel insights from the study of self-organizing, complex dynamical systems. In creating non-linear models of motor behavior it is sometimes overlooked that human behavior is never completely deterministic. This is especially evident in spontaneous movement and decision making for instance in the timing of movement initiation. We present some recent simulations involving stochastic, discrete time, piecewise-linear models with multiple time-scales, describing simple movement tasks. We then give an outlook about the potential role of quantum entanglement in human movement coordination and timing.