The other day I was the vet clinic to drop off our pup for a surgery and it was an early morning (by my standards) drop off and while I was in the line, behind me came a gigantic late model ford truck and since it was a rainy day everybody had headlights on.
This truck the lights were so powerful (maybe they had in high beam) and it was reflecting on the rear view mirror and hurting my eyes. I was almost tempted couple of times to walk out and ask them to turn light off but resisted as it was veterinary clinic and people show up for umpteen different reasons. Besides, I was supposed to leave from there in a couple of minutes.
After a few minutes of this "torture" to my eyes, I realized I could simply fold the mirror towards me and avoid the torture and that's what I did. Easy fix and I did stay there for a few minutes longer than I expected :).