Maybe I can offer some insight into the "flipped shot" mystery.
I work as a television camera operator.
There are several possibilities for the "flipped" shot.
1) the camera operator "broke a 180". In narrative imagemaking, there is a general rule that shots should make logical spatial sense. Thusly, if two subjects are shown having a conversation, the shots of the subjects should make logical spatial sense in relation to the camera position. If one subject is on the left of the camera, the subject should remain on the left of the camera. There is an imaginary line between the subject, and in order to make sense the shots should all be from the same side of this line, a line dividing a 380 degree circle of possible camera positions. Subject "A" should be looking "screen left". Subject "B" should be looking "screen right".
The exception is when the camera position is revealed to relocate, in other words, if the camera person moves around the subjects.
So, after this convaluted explanation, we are left with the possibility that the camera operator moved around the conversation and shot the subjects from the other side, but the editors decided not to use the shot that re-established the new camera position. Yet they wanted the shots of Gideon from that new postion, and were forced to "flip" the shot in order for it to make sense spatially. Phew ! Make any sense ?( hey, I push a record button for a living, I'm no writer ! )
2) The producers flipped the shot to avoid legal issues with the signage seen in the background. Although usually they just "blur" stuff out, ala sports logos in Rap music videos. ( anyone notice signs being readable in other shots from the show ?)
3) the shows producers did not want to give the businesses whose signs are seen in the shot free advertising.
3) Gideon is faking and put the sling on the wrong arm. I find this unlikely, especially since he seems eager to work, suiting up twice only to be sent home again.
Was the "just breathe" indeed a Telepopmusik reference ? And was the "Another day" a This Mortal Coil / Cocteau Twins homage ?
And just what WAS that brown stuff dripping from the ceiling ?