A conversation followed with the lady who had derailed the joke and it turned out she was Italian. Arthur recited the only bit of Italian he knew and asked the lady to translate it. "Oh No, it's far too rude" was her reply. Big laughs all round.
Also on the bit were Ruby and Noah, (and her voice is amazing), Luke Wright an extraordinary performance poet, and Hattie Hayridge, who is best known for her performances as Holly in Red Dwarf.
I certainly came away with a big smile.