In this talk we study the dissipative dynamics arising from coupling to an infinite field in both the classical and quantum context. In particular we study dissipative dynamics generalizing the classical Lamb model. We apply this to the study of dissipation arising in certain controlled quantum systems and also study a model which allows us to quantize certain nonholonomic systems. In the latter case we consider nonholonomic constraints as arising from the limit of a frictional force and then implement the force by an external field which we then quantize. Other methods of quantizing nonholonomic systems will also be discussed.