No joke, my mother-in-law was trying to scrub off baked on bugs from her car and when a rag didn't do it, she used a kitchen scrub pad. Totally destroyed the paint.
Many years ago my younger sister had her 1965 Mustang painted bright red. About 2 weeks later we were expecting rain, and because the Mustang had a small water leak at the window, my older sister decided to "help" by putting plastic sheeting over the window and securing it to the body using masking tape.
I think you know the outcome. Not pretty.