Getting out of primary schools can be sometimes feel more like breaking out a prison. They all have those "press button to open" doors, but they generally put the button somewhere high up, out of the children's reach, or miles away from the door - presumably so they can pounce on escapees before they reach the great outdoors. They're often near a very similar-looking emergency-override buttons, which must never be pressed except in case of fire. I tend to just stand there looking plaintive until someone (often a passing 7 year old) tells me how to escape.