Seven years of ownership and this is really my first stupid mistake...not that this is any consolation right now
Passenger door mirror broke clean at the hollow bolt that joins the body to base. Sounds minor, but, apparently, the only way to repair this is to replace the whole mirror
The impact point is obscured by drywall. After cleaning it up, I'm surprised to see very little damage to the paint on the mirror body and, thankfully, there is no additional damage to the car.
In fact, the damage to the garage drywall is far worse than to the NSX
My NSX has been healed
Replaced mirror, oil pan gasket, received 30K mile service