A_L
The Headmaster(?) has a cane in his left hand. There appears to be a small lamp on the desk nearest the wall, too, so maybe the electrics are needed to illuminate his aim.
However, with the undressing going on & five others clearly about to go through the same, I would have thought the Head might not have needed artificial light. Although this could be a late-evening dorm party that got discovered!
Fascinating-I hope this isn't where Wilf n' Davers got THEIR routine from!


Steve