9-hour flight passenger shares revenge plan for mother-daughter duo's poor flying etiquette.

A Reddit user shared their frustration over a 9-hour flight next to a mother and daughter who ignored basic flying etiquette, prompting them to plot petty revenge. Etiquette experts Jamila Musayeva and Piano Mok highlight important flying don'ts: avoid reclining seats abruptly, refrain from strong scents, keep noise levels low, consume alcohol responsibly, and wear masks if unwell. Following these guidelines can enhance the flying experience for everyone.