At Curliss family dos, this song was my grandad's party piece. It helped that his missus, my gran of course, was called Mary. He'd launch out, after a pint or several of Tetleys of course, with "Oh Mary, this London's a wonderful sight..." with his hand placed tenderly on gran's head. Upon which gran would call out, "Oh, sit down, you silly ould bugger..."

Good times...