Nick’s lack of depth perception while wearing sunglasses made him realize too late that the photographer was too far back for a waist-and-above shot, thereby exposing not only that he was sitting on a fence, but also that his legs failed to reach the ground.
In the early days of Duran Duran, it was often a mad scramble just prior to a photo shoot with Nick, Roger and Andy clamoring for maximum box coverage. Here, Andy gloats from on high, shoving his shorter bandmates down even as he rises above the fray.
Without exchanging a word between them, Roger and Nick both knew they felt the same way: Simon Le Bon had simply gone too far. Sitting on a stool is within his rights as the tallest member of Arcadia, but standing on it? Outrageous!