" Mrs. Jaffee a little earlier. I asked if he was escorting Mrs. Jaffee. “Certainly,” he said virtuously. “She is my client. What’s that noise you’re making?” “It’s something special,” I told him, “and takes a lot of practice. Don’t try it offhand. It’s a derisive chortle. "

― Rex Stout , Prisoner's Base (Nero Wolfe, #21)