My captor must have had experience working help desk. I've endured people eating chips and sandwiches, chewing gum, and sniffling with stopped up sinuses right in my ear, while trying to focus on fixing their computer.

My ex-MIL has TMJ and chews with her mouth open so I’d say her eating kettle chips, jaw clicking with every bite.

they're eating the ~~cat~~pussy

Bananas.

Doesn't matter what they are eating. Their mouth is open and they are mouth breathing as they chew.

My dad eating cereal. Every spoonful was slurped loudly.

apples

Aluminum foil.

Peanuts

nuclear samyang buldak (spicy noodles).

they have to eat it japanese style where they have to slurp. i think the sounds would be too tempting asmr.

This would be literal torture to my wife. I think after watching enough movies with sound effects, eating food, and seeing her reactions it would be the sound of people eating spaghetti with their hands, audibly slurping up the noodles, chewing with their mouths open, combined with loudly smooching and making kissing sounds. They're also popping their necks and elbows throughout the process. She might literally go crazy if she was forced to listen to that for a long period.

Oysters

Ribs. It's ribs.

My stepdad - generally an okay Rick Moranis type and a wizard at the penny stocks - had a quirk. We found out he specifically hated people sucking the sauce off their fingers after eating chicken wings; that kind of thing.

Oh God, we were relentless.

Sand

Honey. Licking makes me want to remove my ears

Ramen. And they are slurping like an 85 year old man who hasn't had to care in 6 decades.

CRAB!

My hubs loves them so I get to sit across the table and listen as he brutally cracks open his food.

You know what they do with the legs, yeah?

dim sum and they have a clicky jaw

Cottage cheese.

Itt: people with Misophonia.

Spoonful after spoonful of cereal with milk. Nothing worse

I think if I am already being tortured I couldn't care less about the sound of someone else eating.

Pudding, with their fingers

Their words.

Preferably the captor