I was actually in there for about an hour. (my legs and whole body died)
Sometimes I can't believe the ridiculous things that happen to me. And yes, my pants were down the whole time. I spent most of my time in there just staying still and waiting. (I did try to take out my iPod, but I was afraid that it would've made the toilet flush)
BUT NO GUYS. I WAS REALLY SCARED. YOU DON'T EVEN KNOW.
(If somebody came up to me and told me that this happened to them, I would laugh but actually being in the situation changes everything... EVERYTHINGGGG)
On another note, it turns out they had a lock down due to somebody bringing a knife into the school. EDIT: In a drill, teachers would bang on doors to simulate intruders breaking in... but since this wasn't a drill, I really have no idea what that was exactly...