Impossible as it might seem to refine Schof, here's my suggestion:
I'm really enjoying Schof's Banksy image idea - asking us to bounce off it. I think its a great idea... here's the slight refinement:
Can we make it lead to action?
Can we come up with some practical suggestions about what we should do about it?
They could be practical things to help the poor / those who experience injustice.
It could be symbolic acts that witness to justice or against injustice.