alt Hacker NewsHah, that's great.
My dentist has overhead TVs in all of the rooms. Before a longer appointment I asked if I could bring some over-ear headphones to connect to the TV. Surprisingly nobody had asked that before but they were fine with it. The headphones drowned out the drilling and other noises and helped me zone out into some shows.
I'm very short sighted so TVs wouldn't work for me, but I also tend to keep my eyes tight shut in case I see any of the ghastly instruments being used!
[During the bone graft I did open my eyes briefly and saw a small for clearly identifiable circular saw].