Pretty much urban myth. The most that would happen is some of the acid from their stomachs damaging the clear coat. The dried protien is what's hard to get off. I use a small ammount of lighter fluid on a paper towel to get it off. Been doing that for 3 years on my parents car and 1 year and a half on mine. No damage yet just use only as much as you need and works great. Other then that your car looks great and love the wheels. But i still love mt silver car. :drive:PS - A friend told me that if you leave bugs on your paint too long their guts actually fuse into the paint so you can't remove them using conventional bug and tar remover. Something about shelac being a derivative of bug guts, so basically you are letting shelac bake into your clearcoat on hot sunny days. Might be an urban myth...but it sure motivates me to clean that thing off once every week!