"Hand over your Lupins!"

Said the Highwayman. Noble lord in carriage: "Lupins?" Highwayman, impatiently: "Yes, yes, Lupins. Come on, hand them over." Lady in carriage: "What, the flower Lupins?" Highwayman (sarcastically) "Yes. The flower Lupins. Come on, hand 'em over." Noble lord in carriage: "But we don't have any Lupins!" Highwayman, with restraint: "I happen to know, that this is the Lupin Express." Noble lord in…