My friends and I walked into the toilets once and there was what sounded like a guy and girl in a cubicle and they were moaning and giggling and we just ran out giggling but I was like FREE PORN?! but omg it was so funny I nearly cried when they came out. XD but the moral of that is to not start having sex in school toilets! :')
Dude, you totally should have got right up to the cubicle and stared through the cracks. Just stare, wide eyed and creeper like.
With this look on your face: