You can make one change to the world/reality that makes people's lives more inconvenient or awkward. What do you change?

Everyone is ever so slightly telepathic, functionally making a web of felt emotions with no thoughts connecting them so what you feel from this is basically a summary of the people in the area around you.

Example: Everyone could be focused at work, nothing major going on, until someone thinks about their significant other and all of a sudden there's a tiny bit of horny thrown in the mix, everyone knows its there, and no one knows who put it there.