When people in a public bathroom can't be bothered to close the door
It might be a weird form of flashing someone, but then why would the guy be mad at me then?
I don't mean lock the door, cause people forget, and plus they break, so I'll either knock, or open the door slowly enough without looking in, so someone can shout before I see him.
I mean, when they literally leave the DOOR OPEN. And then of course they are angry at you. It's your own asphalt. To quote Panic At The Disco, "Haven't you people ever heard of, closing the God D@M door?"