I Didn't Need to See That

Sitting in the treatment room at my chiropractor's office, waiting for my twice-weekly torture at the hands of my doctor and his ominous Graston tools...

...and being privvy to a full view of new-female-intern buttcrack, and half of both ass cheeks (whale-tail included), as she searched in the cabinet for a file.

Tell me, how would a reasonable person handle this situation, with the least amount of embarrassment and awkwardness possible ?