A top executive at Korean Air literally went nuts when she flew first-class on the airline in 2014. Cho Hyun-ah, who is the chairman's daughter, was forced to resign and sentenced to jail after becoming enraged when she was served a bag of macadamia nuts instead of nuts on a plate. She forced the taxiing flight from New York to Seoul to return to the gate to replace the steward. Mrs Cho was charged for using violence against flight crew and forcing a flight to change its normal route.