The Adventures of Tintin #22: Flight 714

Tintin, Captain Haddock and Calculus are on their way to Sydney for an international conference on space exploration. While their flight makes a refueling stop in Jakarta's Kemayoran Airport, they unexpectedly meet their old friend Piotr Skut (see The Red Sea Sharks for backstory), who is now the chief pilot for eccentric millionaire Laszlo Carreidas. A short time earlier, the Captain had erroneously taken the somewhat disheveled Carreidas for a tramp and surreptitiously slipped him a five-dollar bill, which later is taken by the oblivious Professor Calculus, making the millionaire laugh for the first time in years. When introduced to Carreidas, the Captain inadvertently shakes the hand of the millionaire's secretary, the tall, aloof Spalding. All sort of stuff happens next..