A traveler's choice to eat a peanut-filled chocolate bar while boarding a flight to Bali has ignited a passionate debate online regarding airplane etiquette and the considerations for passengers with severe nut allergies.

The incident occurred as the passenger, identified only as Madi from Perth, Australia, was boarding the plane with a Whittaker's Peanut Slab. According to her social media posts, another passenger on the airbridge commented, "Thank God I'm not anaphylactic, thank God I'm not anaphylactic." Madi stated that she was not informed of any nut allergies prior to boarding and felt the unsolicited, passive-aggressive comment was unwarranted. She expressed that if she had known about a fellow passenger's allergy, she would have exercised greater care.

The online reaction to the incident has been sharply divided. Many users sided with the passenger who raised the concern, emphasizing the confined space of an airplane and the potential severity of airborne nut allergens. Some shared personal experiences, including instances of anaphylactic shock triggered by proximity or even smell.

Conversely, a significant number of users defended Madi, arguing that passengers should be permitted to consume their chosen snacks unless an allergy is explicitly announced or the airline has specific restrictions. Some suggested that individuals with severe allergies should take personal precautions, such as wearing masks.

Major airlines like Qantas, Jetstar, and Virgin Australia have stated that they cannot guarantee an entirely allergen-free environment on board their aircraft, including one free from nuts. This policy leaves the responsibility for managing allergy risks in the air largely with individual passengers and the airlines' general safety protocols.