What’s a really specific sound that makes you feel evil?

Besides the obvious chewing noises. Give me something I haven’t heard before.

For me it’s ingressive laughter, or when people laugh on the inhale rather than the exhale. It makes me see red, though I’d never point it out to someone who does it or anything. It’s enough to make me forget what we were even laughing about because now I’m just pissed off. Just laugh correctly damnit! lol