Seven years ago I was just getting started learning auto mechanics and modding through this car, my daily driver. An early mod was HID headlights to reduce power draw. I goofed the install and ended up with ugly plastic bits inside the headlight fixtures. I tried and failed to fish them out.
Today, to repair a lightbulb and ready a couple bumper cover repairs and mods, I took the bumper cover off, the light fixtures out, and used needle nose pliers to shatter and extract the errant plastics:
They refracted the headlight beams a little. It really has been annoying sometimes.