Almost any feedback noise. How is it that phone keyboards make noise by default? Fake camera shutter too needs to be turned off immediately on every phone.

I bought a washing machine recently - it beeped four times whenever the setting dial on the front moved even one place. I heard the guy who installed it testing it out and nearly sent it back before finding I could turn it off.

Why do Foley artists do noises whenever a computer does something? If my pc had a sound every time a window opened, a loading bar appeared, or some text appeared on screen, I would not be the perennially online misfit I am today.