i suspected this might be the case. We will stick with the radio
When I work on forklifts I go into deep consentration mode so I don't lose my fingers, start a fire, chop my arm off, crush my feet, have the forklift go flying across the room, blow the customers building up, etc. Background music OK, TV no way. If someone wants to talk to me I stop working because I can't consentrate.
I'm guessing you've never seen the nailgun commercial? Here's the link youtube.com/watch?v=D1oXrg10Vv0