This is actually quite amusing.
"If you think our walk to the heart of Catholic Christianity precipitated long, long thoughts of history and family — what would the first Jacob Neusner, my grandfather from Koretz in Volhynia Gubernya and Beverly, Massachusetts, who died seventy-seven years ago, a few months before I was born, have thought today, how many Jewish scholars had had occasion to walk through those palatial rooms and what brought them to call on the Pope, and as guard after guard saluted my wife and me how often kippah-wearing visitors received the Swiss guards’ salute — if you thought it was these thoughts of who and where I was, you’re mistaken. Midway through the walk from room to room, I had the awful thought that my fly was open. I checked. It was — but not for long."