It's not socially acceptable to pass gas on an airplane.
Drew is flying home on a business trip and his stomach is beginning to ache.
Drew wants to relieve the gas in his stomach.
Drew goes to the plane bathroom and farts.
Drew farts and the smell carries to the surrounding passengers.
The passengers surrounding Drew continue with what they were doing without being bothered.
The other passengers are disgusted with the smell and try to cover their faces.