When you’re in session and passers by decide they don’t need to knock on the unmarked random door in the hallway that may or may not go anywhere, and just WALK RIGHT IN!!
It’s on me, sometimes I forget to lock it. Or I think it’s locked and it’s not; because it’s one of those weird doors that looks locked when it’s not.
It’s the little things that sometimes create the biggest moments. About once a month I have to jump up and stop the accidental confidentiality breach.