A childhood belief about dangerous food

When I was in kindergarten, I was "going out" with a boy on my street. We introduced my older sister to his older brother and they started going out. One day when we were playing together, we mixed up a potion that we were convinced would shrink us to the size of legos. We talked all the time about what we would do when we were shrunk, where we would live, what we would eat, how we would swim at the pool and so on. We didn't want to take the potion till we had planned it all out and built our teeny lego houses and cars and things. Before we got to take it, our boyfriends' mom found our concoction in her fridge and threw it away. When I think back now I'm sure that the potion we made would have killed us. I can't remember everything we put in it, but I do remember that windex was one of the ingredients.