Scenario 1:
Me: *cover both ears with headphones, start listening to vicious metal, look angry, busy and determined*
Co-workers: "Oh hey! I need to understand ____"
Me: "Fuuuuu..."

Scenario 2:
Me: *place headphones on one ear, listen to gentle, approachable music at low volume with smile on face*
Co-workers: *crickets for hours*
Me: Fucking seriously? *commence Scenario 1*