And she's right about it being from Pinafore (I looked it up). I'd have instantly recognized it if it were from Pirates, given that I saw the Papp/L.A.Civic Light Opera production with Pam Dawber twice, and have the D'Oyly Carte recording on vinyl, but I'm not entirely sure I've ever seen Pinafore. (I never knew Larroquette appeared on The West Wing; although I don't think I ever saw an entire episode of it, I always admired the series. I of course remember him from Night Court, and as Maltz in TSFS.)