Inappropriate Teacher's Dress

Have any of you faced a teacher, preschool or otherwise that dressed
inappropriately? Recently, I experienced a situation with "teachers"
(they were actually college students doing a summer intern-job) that
wore low ride, cotton, white, mini skirts, with no slips (do people
still wear slips?). One has a tongue stud. Both wore shirts with their
belly buttons exposed.
It is a delicate situation in that I am related to the owner. I did
say something to the owner, but then let the subject die.
I can say that husband is eager to drive my daughters to the school!

In a previous preschool, the teachers had tattoos, but they covered
them up. I have a tattoo as well, but if I was in a professional
situation, I would cover it up.

Mary