blonde moment

Ok well I was in cross country and we had a meet one day. Me and my friends were got out of class early because it was a school day and we couldnt be late to the meet. We went and got our uniform on and we are walking down the hallway and i stop to get a drink of water. i start talking really lard and my friends tell me to quiet down. I ask them why. They point to a classroom. So i say what is that. They said ITS A CLASSROOM.  I say what are they doing(because there were kids in the classroom). They say WORKING. So me with my blonde moment i thought school was over. No wonder no one was in the hallway.