We towed a Schock 35 in after Thursday night races last week. Spinnaker sheet wrapped around the prop, 2 knots of wind in a 4 knotcurrent and they were headed towards the breakwater. The anchor was on the dock to save weight for the race. I think having some sort of anchor rigged and accessible at all times is a good idea, not to mention keeping track of those sheets.
Most racingclasses require an anchor on board at all times. Leaving it on the dock to save weight is not only foolhardy, it's cheating as well.
__________________ cruising is entirely about showing up--in boat shoes.