"Since now," Snape said sharply. "Since I arrived on this terrible, inexplicable island and was given a room apparently inhabited by an exhibitionist." He nearly spat the word out, as if it was something incredibly distasteful to be called.

Normal people would turn around, so the man on the bed could have had some dignity while he possibly scrambled for clothes, but Snape was not that sort of person. His gaze fixed on a point on the wall, somewhere north of the bed the man was in. "And as someone who lives here, I believe it's fair to make a request that you put some bloody pants on."