My kindergartener, who was the first to get sick with covid, said she probably caught it from another kid who had it playing the dragon game. When asked what the dragon game was, she replied "it's when you open your mouth and pretend to breath fire into your friends mouths."
I caught my friends kid spitting in the cooler at my daughter's birthday party. He wasn't even trying to be funny because he did it when he thought no one was looking. Children are absolute monsters.