It wasn’t the passenger’s dirty feet that sparked backlash. It was the mum filming them.

“When will you unlock the mother’s courage card?”

A mum is in hot water after choosing to toe the line, instead of confronting a bare foot bandit during a flight with her daughter.

A video she posted to TikTok has gone viral after she filmed her daughter seated beside a stranger who had their bare, dirty feet propped up on the chair between them.

We’re talking overgrown toenails, misshapen toes, and dry skin so crusty it’s begging for a PedEgg intervention.

The clip has racked up more than 10 million views and sparked plenty of opinions in the comment section. 

The mum has been slammed for not speaking up amid her daughter's foot fiasco. Image: TikTok/ Laurrenoxxo

RELATED: Travellers infuriated over woman's selfish flight act

"You should have said something"

It’s set to the trending “Nothing beats a Jet2 holiday” sound, a popular track used to poke fun at holiday fails.

People have slammed the unsavoury passenger behaviour.

“That’s so rude,” one person writes. 

Another criticises: “that’s not okay.” 

“My anger issues could never,” a third added.

A fourth simply revealed: “my jaw DROPPED”.

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While the video text reads, “My poor daughter", many are wondering the same thing: why didn’t the mum step in? 

“Why are you letting her sit there? Like swap seats wtf?” one person asked. 

“Yeah that wouldn’t be happening if my daughter was sitting there,” a second agreed.

“'Excuse me, move your feet off the seat and stop putting them right next to my daughter.’ Why do people sit feeling awkward next to someone? If your daughter felt uncomfortable saying something, you should have said something to her and taught her how to deal with situations she’s uncomfortable with,” another advised.

Meanwhile a fourth brutally put it: “when will you unlock the mother’s courage card?” 

RELATED: Dad 'makes' 5 month old baby apologise to passengers after flight

What would you do? 

When asked why she didn’t intervene, the mum responded: “It’s funny. She found it hilarious.”

Others suggested she could have asked a flight attendant to step in, while more extreme ideas involved “accidentally” spilling coffee during turbulence.

The viral clip has sparked a bigger conversation: when it comes to gross plane etiquette, should you call it out… or just grin and toe it?

The Kidspot team had thoughts. 

Rebel questioned the age of the child, but said it wouldn’t matter anyway. 

“I'd speak up anyway because FIGHT ME .. but probs should encourage older kid to advocate for themself?” she suggested. 

Leah echoed the sentiment: “I would be nervous myself even saying something so I wouldn't put my kid in that anxiety inducing position. I'd say something for them.” 

Meanwhile Emily knows exactly what she’d do. 

“That’s gross. I would speak up. Or make my husband!” she said. 

Because when it comes to plane etiquette, sometimes silence speaks louder than smelly feet.

Originally published as It wasn’t the passenger’s dirty feet that sparked backlash. It was the mum filming them.