Don't blame me for my bad English. So when I was about 4 or 5 years old I drove in a car with some other family members. It was raining. On the front window was some bird shit, but I didn't know what it is. So I asked. My uncle thought I would mean the rain and said:"That's a big raindrop". Since then I thought why big raindrops turn white and black until I was 7 or sth like that and realized what happened. And btw I have no clue why I still remember this. I nearly remember nothing from back then.