Other than listening, why do you use earphones/headsets/similar ?
To make it less likely that someone will try to talk to me.
Avoid human interaction lol
It's pretty much universal for conveying that you don't want to be bothered.
Sometimes I also forget I have them on.
I only use my headphones to take out the recycling because we have to dump the bin into a much taller bin and when everything comes crashing down into it it makes a lot of noise and I don't want to damage my ears.
To block out noise. Of people pissing, creaking floorboards and generally being alive. Which is very irritating.
To keep my ears warm.
So pple don't try talk to me