"And so, this mysterious young man says, "This is Mister Bojangles. He’s fifteen years old. What’s your fish’s called?’ And of course I hadn’t named the fish in my pants, so I said the most dignified thing that came to mind, which was " Uhh... Merlin’, but it sounded like I’d said "A marlin’, and so when I met Blaise Zabini, I told him I had a large game fish in my trousers –" I pause while everyone laughs "– and he believed me."