Is it worth it?

Ten hours shooting a whiteboard in East Finchley. It took 3 hours just to get the lighting right for godsakes. No wonder the tinny voice of Robert Wyatt was going round and round in my head:
"Is it worth it?
A new winter coat
And shoes for the wife
And a bicycle
On the boy's birthday
It's just a rumour
That was spread around town
By the women and children
Soon we'll be WHITEBOARDING"