Spot Sir Nicholas Serota Competition

Sir Nicholas Serota, Director of the Tate Gallery, who once famously wrote that art should be challenging and not be afraid of causing offence, seems yet again remarkably reticent to take up the challenge himself.

He emerged from the front of the Tate during the Stuckist protest outside and instead of engaging in challenging and fearlessly-offensive debate, hastened sheepishly down the side of the steps and scuttled off into the distance.

His lightning departure can be judged from the distance he managed to cover in the time it took to get out our camera.

Yes, he's there somewhere in the picture, if you look hard enough. To see if you've got the right answer, click here.