Bird poop etching and door dings.
Both just seem to find the car, no matter where I park...
Have a spot of bird crap that made the paint "bubble" and pealed the clear coat. Oh ****..., in the scheme of things, there are bigger issue in life. Pisses me off, but I get over it and move on.
Never had either problem with the is300, but I still love the WRX.