When you are invited to dine, particularly with people you do not know very well, it always helps to have a conversational opener, a phrase which here means "an interesting sentence to say out loud in order to get people talking." Although lately it has become more and more difficult to attend dinner parties without the evening ending in gunfire or tapioca, I keep a list of good and had conversational openers in my commonplace book in order to avoid awkward pauses at the dinner table. "Who would like to see an assortment of photographs taken while I was on vacation?" for instance, is a very poor conversational opener, because it is likely to make your fellow diners shudder instead of talk, whereas good conversational openers are sentences such as "What would drive a man to commit arson?", "Why do so many stories of true love end in tragedy and despair?" and "Madame diLustro, I believe I've discovered your true identity!", all of which are likely to provoke discussions, arguments, and accusations, thus making the dinner party much more entertaining.