I don't usually post in this thread but I think this story is slightly amusing and open for debate.
Anyways, I am in University living off campus with 3 other guys and we only have one washroom. So I was using it, and basically the unwritten rule is if the door is shut tight, knock. Anyways I forgot to lock the door and my one roommate didn't knock so a slightly awkward moment ensued. Following this we debated rather heatedly about what is more important locking or knocking.
I think both are equally important but I roommate won't let up that locking is all that needs to be done. So what are your positions on this (rather stupid) debate.