Ive seen access control doors that have a bad closer piston that unless you open it ALL the way and it is allowed to return home FULL FORCE (no wind, etc) it wont latch. e.g. open it just enough to walk through and a wind slows it down so it just rests on the strike plate.Sure....but why was it propped to begin with?
Then, when a murderous thug is in the area shouldn't one ensure it is latched after the prop is removed?
Thats why EVERYONE must be vigilant in secure facilities and report when doors dont RELIABLY close all the way.