In class, someone silently passed gas. A girl told the teacher “someone passed gas” and then I laughed a bit cause of what she said. Then another girl said it was me who passed gas. Then the whole class (except for the girl who first announced someone passed gas) started laughing. Why did the second girl say it was me who passed gas and why did everyone but the first girl laugh at me. And why did the second girl look at me with a devious smile?