I'm covering for someone for three weeks in a small room with only a few of us.
One guy listens to music loudly using the laptop speakers, while bizarrely having headphones around his neck but not wearing them.
He does it for a few hours in the morning and the afternoon.
Aibu to tell him he's forgotten to plug the headphones in?
I don't want to make any trouble as only there for a bit, but it's really annoying in an office environment and making it hard to concentrate.