You always want to open the emergency exit door just to see if the alarm WILL sound, amirite?

My little brother did that not too long ago... and yes an alarm will sound loudly while you're changing and the manager will try to open your door.

lol alot of the time the alarm wont actually sound, ive walked through a couple and nothing has happened to me yet, the only time i ever actually heard one make a sound was when we were kids and oped up the one on the school bus XD