I was brought to my office a batch of new MFUs for storage, MFUs in huge cubic boxes. The cabinet is small, therefore the boxes are placed in several rows on each other, blocking access to the window. The cabinet sometimes needs to be ventilated and in order to get to the window, you have to move the boxes in different directions, and getting to the window and opening it - to move the boxes in the opposite direction to get out. In short, I’m now a champion in socban!