There is a light thud when Jin Yoon whips her head back into the door purely by accident in her surprise, and utters a few extremely crude phrases pertaining to the door's ancestry, its sexual preferences, and general state of hygiene.
The color she turns after that could easily be used as some type of beacon at night.
"I most humbly beg your pardon, teacher," she says, bowing again and barely avoiding going to her knees, "I did not intend- it was not my intention to say such things in the presence of my better."