Starter Grind

[samg1965]

2002 Boxster. From time to time when starting I hear a "grinding" sound reminiscent of an "over cranking" starter. I attempt to find a sweet spot to disengage the ignition switch, but doesn't seem to matter. Could be coincidental, but seems to occur more with warm engine. It usually occurs when I'm at a gas station and there's a 30 year old blonde at the pump next to mine checking out the cool car with the dorky owner grinding the **************** out of the starter.