Muscle-memory Memes

The pilot's muscle memory is experiencing a catastrophic conflict between aviation protocols and taxi driver instincts. Force of habit has them sticking their arm out the window like they're about to flag down another aircraft at 36,000 feet. The laws of aerodynamics and common sense are clearly having a disagreement here. Just imagine the pre-flight announcement: "In the event of a fare dispute, your arm can be used as an emergency payment collector."