I'm a rational bloke, but this scared me for a minute.

I'm sat here, checking account lists, alone, dark.

A voice, very quiet, started coming from my speakers. I assumed it was an ad playing somewhere, so I muted my sound.

It carried on...so I unplugged the jack....it carried on.

It is probably something like the wire acting as an antenna and picking up radio or something, but man...I honestly shat a brick.