From an email to a pal:
'This is the rough i did of the crucifixion of st peter the other night. I've been thinking of doing this picture for a couple of years. It's not a Christian thing - though no one will believe that - but more an image of the calculated domestic nastiness in our own age of conflicting idelogies colliding above the chavs. I'm thinking the background should be an ordinary English tatty suburban park - green railings, maybe even a game of football in the distance...'
OK, St Peter did ask to be crucified upside down, according to the Apocrypha, but still.