There has been a mass exodus of tape from the roll onto the backs of posters, leaping to the (brick) internal wall and affixing itself there, mostly square, except for maybe the atlas. Because regular sticky-tape didn't work. Blu-Tak fell off with genuine fear of commitment to the wall. So the big guns were called in, and double-sided sticky-tape has stood upon the podium for its victory against the painted brick wall. And the room is more colourful, and more personalised, as a result. The painting...