Obscene Sistine?

"If you look closely at the angels who attend the scary prophetess on the Sistine ceiling known as the Cumaean Sibyl, you will see that one of them has stuck his thumb between his fingers in that mysteriously obscene gesture that visiting fans are still treated to today at Italian football matches. It means something along the lines of: how would you like this inserted into your rectum, ragazzo?" - From the Sunday Times Online